Ch 18 Acids and Bases Big Idea: Acids and Bases can be defined in terms of hydrogen ions and hydroxide ions or in terms of electron pairs.

Save this PDF as:
 WORD  PNG  TXT  JPG

Size: px
Start display at page:

Download "Ch 18 Acids and Bases Big Idea: Acids and Bases can be defined in terms of hydrogen ions and hydroxide ions or in terms of electron pairs."

Transcription

1 Ch 18 Acids and Bases Big Idea: Acids and Bases can be defined in terms of hydrogen ions and hydroxide ions or in terms of electron pairs. Ch 18 - Acids and Bases I CAN: 1) Compare properties of acids and bases. 2) Compare and contrast the Arrhenius and Bronsted-Lowry models of acids and bases. 3) Relate the strength of an acid or base to its degree of ionization. 4) Define ph and poh and calculate them in solutions. 5) Write balanced equations for neutralization reactions. 6) Determine whether salt solutions are acidic, basic or neutral in salt hydrolysis reactions. 1

2 Properties of Acids and Bases Acids Bases 1. Latin "acidus" sour taste Bitter taste lemons citric acid Slippery feel grapefruit ascorbic acid 2. React w/ metals to produce H 2 May be caustic (cause burns) React w/ carbonates to produce CO 2 3. Litmus paper turns pink Litmus turns blue Phenolphthalein colorless Phenolphthalein pink 4. Strong or weak electrolytes Strong or weak conduct electricity electrolytes conduct electricity 5. ph < 7 ph > 7 [H +1 ] > [OH 1 ] [OH 1 ] > [H +1 ] All water solutions contain hydrogen ions (H + ) and hydroxide ions (OH ). Arrhenius Model of Acids and Bases (1883) Arrhenius Acids: ionize in H 2 O to produce H +1 ions HCl(aq) H +1 (aq) + Cl 1 (aq) Arrhenius Bases: ionize in H 2 O to produce OH 1 ions NaOH (aq) Na +1 (aq) + OH 1 (aq) Shortcoming: NH 3 does not contain OH group but is a wellknown base 2

3 Bronsted Lowry Model (1923) Acid: donates a H +1 ion to another substance Base: accepts a H +1 ion from another substance Example: HCl + H 2 O H 3 O +1 + Cl 1 Acid Base Conjugate acid base pair: 2 substances that differ only by H +1 HCl and Cl 1 are a conjugate acid base pair: they differ only by H +1 H 2 O and H 3 O +1 are also a conjugate acid base pair Example: NH 3 + H 2 O NH OH 1 Amphoteric: a substance that can act as either an acid or a base (H 2 O) 3

4 Monoprotic and Polyprotic Acids Monoprotic Acid can donate only ONE hydrogen ion (H + ) Examples: HCl, HBr, HNO 3, CH 3 COOH CH 3 COOH + H 2 O H 3 O + + CH 3 COO Polyprotic Acid can donate MORE THAN ONE hydrogen ion (H + ) Examples: H 2 SO 4, H 3 PO 4, H 2 CO 3 All polyprotic acids ionize in steps: H 2 SO 4 + H 2 O H 3 O + + HSO 4 HSO 4 + H 2 O H 3 O + + SO 4 2 4

5 Practice: Write the ionization equations for H 3 PO 4 Strengths of Acids and Bases Strong Acids ionize completely in water Examples: HCl, HNO 3, H 2 SO 4 HCl + H 2 O H 3 O + + Cl 1 no reverse rxn occurs Weak Acids ionize only partially in water Ex: CH 3 COOH, HF, H 2 CO 3, H 3 PO 4 CH 3 COOH(aq) + H 2 O(l) H 3 O + (aq) + CH 3 COO 1 (aq) this reaction reaches equilibrium: forward rate = reverse rate K a = [H 3 O + ] [CH 3 COO ] = 1.8 x 10 5 [CH 3 COOH] K a is the acid ionization constant. The weaker the acid, the smaller the K a. 5

6 6

7 Strong Bases ionize completely in water Examples: metallic hydroxides (group 1 & 2 metals with OH) NaOH(s) Na +1 (aq) + OH 1 (aq) Weak Bases ionize only partially in water CH 3 NH 2 (aq) + H 2 O (l) CH 3 NH 3 +1 (aq) + OH 1 (aq) K b = [CH 3 NH 3 +1 ] [OH 1 ] = 4.3 x 10 4 [CH 3 NH 2 ] 7

8 8

9 Strong, Weak, Concentrated, Dilute What is the difference? Strong acid or base completely separated into ions Weak acid or base contain few ions Dilute or concentrated refers to the molarity of the solution 0.1 M HCl 6 M CH 3 COOH ph pouvoir hydrogen (hydrogen power) ph concept Soren Sorensen 1909 ph Scale l l stronger acids neutral stronger bases Pure H 2 O ionizes slightly: H 2 O(l) H + (aq) + OH 1 (aq) K w = ion product constant for water K w = [H + ] [OH ] For pure H 2 O at 298 K (25 C): [H + ] = [OH ] = 1.0 x 10 7 M so K w = (1.0 x 10 7 ) (1.0 x 10 7 ) and K w = 1.0 x

10 ph Scale [H + ] are very small numbers easier to use ph scale Def: ph = log [H + ] MEMORIZE THIS!!! Ex: [H + ] = 1.0 x 10 7 ph = [H + ] = 1.0 x 10 6 ph = [H + ] = 1.0 x 10 5 ph = As [H + ] increases, ph. As [H + ] decreases, ph. 10

11 11

12 [H + ] [OH ] ph poh [H + ][OH ] = 1.0 x [H + ] [OH ] ph = log [H + ] [H + ] = antilog ( ph) [OH ] = antilog ( poh) poh = log [OH ] ph ph + poh = poh 12

13 poh poh = log [OH ] ph + poh = Ex: [H + ] of a soft drink is 7.3 x 10 4 M. What are the ph and poh? Ex: [OH ] of a solution is 5.6 x 10 8 M. What are the ph and poh? Calculating [H + ] and [OH ] from ph or poh Ex: An antacid solution has a ph of What are [H + ] and [OH ]? Since ph = log [H + ] ph = log [H + ] And antilog ( ph) = [H + ] So antilog ( poh) = [OH ] 13

14 ph of strong acids and strong bases Recall: strong acids and bases are essentially 100% ionized HCl (aq) H + (aq) + Cl (aq) 0.1 M so ph = NaOH (aq) Na + (aq) + OH (aq) 0.1 M so poh = Ca(OH) M 14

15 Neutralization Reactions Acid + Base Salt + H 2 O Ex: HNO 3 (aq) + Ca(OH) 2 (aq) Acid Base Titration a method for determining the concentration of a solution by reacting it with another solution of known concentration, called a standard solution. Ex: You have 25 ml of 1.0 M NaOH(aq). Find the concentration of 15 ml of an acetic acid solution. M a x V a = M b x V b Equivalence point moles of H + from acid = moles of OH from base. End point the point at which the indicator changes color during the titration 15

16 Titration Experiment 16

17 Salt Hydrolysis (salt reacting with H 2 O) Salt ionic compound obtained by a neutralization reaction in an aqueous solution. The resulting salt solution may be neutral, acidic or basic depending on the strength of the parent acid and parent base. Rules: 1. Strong Acid + Strong Base Neutral solution 2. Strong Acid + Weak Base Acidic solution 3. Weak Acid + Strong Base Basic Solution 4. Weak Acid + Weak Base depends on relative strengths of acid and base Salt Parent Acid Parent Base ph 17

Grace King High School Chemistry Test Review

Grace King High School Chemistry Test Review CHAPTER 19 Acids, Bases & Salts 1. ACIDS Grace King High School Chemistry Test Review UNITS 7 SOLUTIONS &ACIDS & BASES Arrhenius definition of Acid: Contain Hydrogen and produce Hydrogen ion (aka proton),

More information

Chapter Menu Chapter Menu

Chapter Menu Chapter Menu Chapter Menu Chapter Menu Section 18.1 Section 18.3 Section 18.4 Introduction to Acids and Bases Hydrogen Ions and ph Neutralization Section 18.1 Intro to Acids and Bases Objectives: Compare the Arrhenius,

More information

Unit 2 Acids and Bases

Unit 2 Acids and Bases Unit 2 Acids and Bases 1 Topics Properties / Operational Definitions Acid-Base Theories ph & poh calculations Equilibria (Kw, K a, K b ) Indicators Titrations STSE: Acids Around Us 2 Operational Definitions

More information

[H + ] OH - Base contains more OH - than H + [OH - ] Neutral solutions contain equal amounts of OH - and H + Self-ionization of Water

[H + ] OH - Base contains more OH - than H + [OH - ] Neutral solutions contain equal amounts of OH - and H + Self-ionization of Water 19.1 Acids & Bases 1. Compare and contrast the properties of acids & bases. 2. Describe the self-ionization of water & the concept of K w. 3. Differentiate between the Arhennius & Bronsted-Lowry models

More information

CH19 Bronsted-Lowry Definitions

CH19 Bronsted-Lowry Definitions CH19 Bronsted-Lowry Definitions 1 BRONSTED-LOWRY DEFINITIONS [Acids] An acid is a substance that can donate H + ions HCl hydrochloric acid HNO 3 nitric acid HOAc acetic acid H 3 0 + hydronium ion NH +

More information

What is an acid? What is a base?

What is an acid? What is a base? What is an acid? What is a base? Properties of an acid Sour taste Turns litmus paper red Conducts electric current Some acids are strong and some are weak Properties of a base Bitter taste Slippery to

More information

Chemistry I Notes Unit 10: Acids and Bases

Chemistry I Notes Unit 10: Acids and Bases Chemistry I Notes Unit 10: Acids and Bases Acids 1. Sour taste. 2. Acids change the color of acid- base indicators (turn blue litmus red). 3. Some acids react with active metals and release hydrogen gas,

More information

Unit 10: Acids and Bases

Unit 10: Acids and Bases Unit 10: Acids and Bases PROPERTIES OF ACIDS & BASES Properties of an Acid: a Tastes sour substance which dissociates (ionizes, breaks apart in solution) in water to form hydrogen ions Turns blue litmus

More information

Unit 9. Acids, Bases, & Salts Acid/Base Equilibrium

Unit 9. Acids, Bases, & Salts Acid/Base Equilibrium Unit 9 Acids, Bases, & Salts Acid/Base Equilibrium Properties of Acids sour or tart taste strong acids burn; weak acids feel similar to H 2 O acid solutions are electrolytes acids react with most metals

More information

CHAPTER 19. Acids, Bases, and Salts Acid Base Theories

CHAPTER 19. Acids, Bases, and Salts Acid Base Theories CHAPTER 19 Acids, Bases, and Salts 19.1 Acid Base Theories ACIDS tart or sour taste Electrolytes Strong acids are corrosive Acid Facts... indicators will change color Blue litmus paper turns pink react

More information

What is an acid? What is a base?

What is an acid? What is a base? What is an acid? What is a base? Properties of an acid Sour taste Turns litmus paper red Conducts electric current Some acids are strong and some are weak Properties of a base Bitter taste Slippery to

More information

Chapter 14. Objectives

Chapter 14. Objectives Section 1 Properties of Acids and Bases Objectives List five general properties of aqueous acids and bases. Name common binary acids and oxyacids, given their chemical formulas. List five acids commonly

More information

What is an acid? What is a base?

What is an acid? What is a base? What is an acid? What is a base? Properties of an acid Sour taste Turns litmus paper red Conducts electric current Some acids are strong and some are weak Properties of a base Bitter taste Slippery to

More information

UNIT 14 - Acids & Bases

UNIT 14 - Acids & Bases COMMON ACIDS NOTES lactic acetic phosphoric citric malic PROPERTIES OF ACIDS 1. 1. PROPERTIES OF BASES 2. 2. 3. 3. 4. 4. 5. 5. NAMING ACIDS NOTES Binary acids (H + one element) Practice: 1. hydro- - HF

More information

CHEMISTRY Matter and Change

CHEMISTRY Matter and Change CHEMISTRY Matter and Change UNIT 18 Table Of Contents Section 18.1 Introduction to Acids and Bases Unit 18: Acids and Bases Section 18.2 Section 18.3 Section 18.4 Strengths of Acids and Bases Hydrogen

More information

Chapter. Acid-Base Concept. Table of Contents. Introduction 1. Acid-Base Theories 2. The ph Scale 3. Strength of Acids and Bases 4.

Chapter. Acid-Base Concept. Table of Contents. Introduction 1. Acid-Base Theories 2. The ph Scale 3. Strength of Acids and Bases 4. Acid-Base Concept Table of Contents Introduction 1. Acid-Base Theories 2. The ph Scale 3. Strength of Acids and Bases 4. Neutralization Acid-Base Concept Warm up Think about substances that you encounter

More information

Acids and bases, as we use them in the lab, are usually aqueous solutions. Ex: when we talk about hydrochloric acid, it is actually hydrogen chloride

Acids and bases, as we use them in the lab, are usually aqueous solutions. Ex: when we talk about hydrochloric acid, it is actually hydrogen chloride Acids and Bases Acids and bases, as we use them in the lab, are usually aqueous solutions. Ex: when we talk about hydrochloric acid, it is actually hydrogen chloride gas dissolved in water HCl (aq) Concentrated

More information

In the Brønsted-Lowry system, a Brønsted-Lowry acid is a species that donates H + and a Brønsted-Lowry base is a species that accepts H +.

In the Brønsted-Lowry system, a Brønsted-Lowry acid is a species that donates H + and a Brønsted-Lowry base is a species that accepts H +. 16.1 Acids and Bases: A Brief Review Arrhenius concept of acids and bases: an acid increases [H + ] and a base increases [OH ]. 16.2 BrønstedLowry Acids and Bases In the BrønstedLowry system, a BrønstedLowry

More information

UNIT 14 - Acids & Bases

UNIT 14 - Acids & Bases COMMON ACIDS NOTES lactic sour milk, sore muscles acetic vinegar phosphoric soft drinks citric citrus fruits malic apples PROPERTIES OF ACIDS PROPERTIES OF BASES 1. Taste sour 1. Taste bitter 2. react

More information

Chapter 14 Properties of Acids and Bases

Chapter 14 Properties of Acids and Bases Section 14.1 Defining Acids and Bases Properties of acids and bases Chapter 14 Properties of Acids and Bases taste sour Acids taste bitter Bases conduct electricity no characteristic feel react with metals

More information

Part One: Acid-Base Concepts. 1. Sour taste. (Examples: vinegar = acetic acid; lemons - citric acid) yellow

Part One: Acid-Base Concepts. 1. Sour taste. (Examples: vinegar = acetic acid; lemons - citric acid) yellow CHAPTER 15: ACIDS AND BASES Part One: Acid-Base Concepts A. Properties of Aqueous Solutions of Acids. 1. Sour taste. (Examples: vinegar = acetic acid; lemons - citric acid) 2. Change the colors of many

More information

What are Acids and Bases? What are some common acids you know? What are some common bases you know? Where is it common to hear about ph balanced

What are Acids and Bases? What are some common acids you know? What are some common bases you know? Where is it common to hear about ph balanced What are Acids and Bases? What are some common acids you know? What are some common bases you know? Where is it common to hear about ph balanced materials? Historically, classified by their observable

More information

Chem 30A. Ch 14. Acids and Bases

Chem 30A. Ch 14. Acids and Bases Chem 30A Ch 14. Acids and Bases Acids and Bases Acids and Bases Acids Sour taste Dissolve many metals Turn litmus paper red. Egs. Ace9c acid (vinegar), citric acid (lemons) Bases Bi>er taste, slippery

More information

UNIT #11: Acids and Bases ph and poh Neutralization Reactions Oxidation and Reduction

UNIT #11: Acids and Bases ph and poh Neutralization Reactions Oxidation and Reduction NAME: UNIT #11: Acids and Bases ph and poh Neutralization Reactions Oxidation and Reduction 1. SELF-IONIZATION OF WATER a) Water molecules collide, causing a very small number to ionize in a reversible

More information

Duncan. UNIT 14 - Acids & Bases. COMMON ACIDS NOTES lactic acetic phosphoric NAMING ACIDS NOTES

Duncan. UNIT 14 - Acids & Bases. COMMON ACIDS NOTES lactic acetic phosphoric NAMING ACIDS NOTES COMMON ACIDS NOTES lactic acetic phosphoric citric malic PROPERTIES OF ACIDS 1. 1. PROPERTIES OF BASES 2. 2. 3. 3. 4. 4. 5. 5. NAMING ACIDS NOTES Binary acids (H + one element) 1. hydro- - HF 2. root of

More information

CHAPTER Acid & Base

CHAPTER Acid & Base CHAPTER 19 19.1 Acid & Base Common Reactions with Acids Dilute: small amount of solute 1-M Concentrated: large amount of solute Indicator: changes color to show the presence of acids or bases : eat or

More information

Unit 4a Acids, Bases, and Salts Theory

Unit 4a Acids, Bases, and Salts Theory Unit 4a Acids, Bases, and Salts Theory Chemistry 12 Arrhenius Theory of Acids and Bases The first theory that was proposed to explain the actions of acids and bases was by Svante Arrhenius. It is still

More information

Indicator Color in acid (ph < 7) Color at ph = 7 Color in base (ph > 7) Phenolphthalein Bromothymol Blue Red Litmus Blue Litmus

Indicator Color in acid (ph < 7) Color at ph = 7 Color in base (ph > 7) Phenolphthalein Bromothymol Blue Red Litmus Blue Litmus Unit 9: Acids and Bases Notes Introduction and Review 1. Define Acid: 2. Name the following acids: HCl H2SO4 H2SO3 H2S 3. Bases usually contain 4. Name the following bases: NaOH Ca(OH)2 Cu(OH)2 NH4OH Properties

More information

Acids and Bases. Chapter 15. Copyright The McGraw-Hill Companies, Inc. Permission required for reproduction or display.

Acids and Bases. Chapter 15. Copyright The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Acids and Bases Chapter 15 Copyright The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Acids Have a sour taste. Vinegar owes its taste to acetic acid. Citrus fruits contain

More information

1 Chapter 19 Acids, Bases, and Salts

1 Chapter 19 Acids, Bases, and Salts 1 Chapter 19 Acids, Bases, and Salts ACID-BASE THEORIES Acids and bases are all around us and part of our everyday life (ex. bodily functions, vinegar, carbonated drinks, citrus fruits, car batteries,

More information

UNIT 4 ACID BASE EQUILIBRIUM. Bronsted Lowery Acids and Bases

UNIT 4 ACID BASE EQUILIBRIUM. Bronsted Lowery Acids and Bases UNIT 4 ACID BASE EQUILIBRIUM Bronsted Lowery Acids and Bases Acids ate & ide to ic ite to ous Binary Oxy Pure Aqueous Pure Aqueous HCl (g) HCl (aq) H 2 SO 4(l) H 2 SO 4(aq) hydrogen chloride hydrochloric

More information

Aqueous solutions of acids have a sour Aqueous solutions of bases taste bitter

Aqueous solutions of acids have a sour Aqueous solutions of bases taste bitter Acid and Bases Exam Review Honors Chemistry 3 April 2012 Chapter 14- Acids and Bases Section 14.1- Acid and Base Properties List five general properties of aqueous acids and bases Properties of Acids Properties

More information

ACIDS AND BASES. HCl(g) = hydrogen chloride HCl(aq) = hydrochloric acid HCl(g) H + (aq) + Cl (aq) ARRHENIUS THEORY

ACIDS AND BASES. HCl(g) = hydrogen chloride HCl(aq) = hydrochloric acid HCl(g) H + (aq) + Cl (aq) ARRHENIUS THEORY ACIDS AND BASES A. CHARACTERISTICS OF ACIDS AND BASES 1. Acids and bases are both ionic compounds that are dissolved in water. Since acids and bases both form ionic solutions, their solutions conduct electricity

More information

ACIDS, BASES & SALTS DR. RUCHIKA YADU

ACIDS, BASES & SALTS DR. RUCHIKA YADU ACIDS, BASES & SALTS DR. RUCHIKA YADU Properties of Acids Acid is a compound which yields hydrogen ion (H+), when dissolved in water. Acid is sour to the taste and corrosive in nature. The ph value of

More information

8.1 Explaining the Properties of Acids & Bases. SCH4U - Chemistry, Gr. 12, University Prep

8.1 Explaining the Properties of Acids & Bases. SCH4U - Chemistry, Gr. 12, University Prep 8.1 Explaining the Properties of Acids & Bases SCH4U - Chemistry, Gr. 12, University Prep Equilibrium & Acids & Bases 2 So far, we have looked at equilibrium of general chemical systems: We learned about

More information

Acids Bases and Salts Acid

Acids Bases and Salts Acid Acids Bases and Salts Acid ph less than 7.0 Sour taste Electrolyte Names of Acids Binary acids Contain only 2 elements Begin with hydro; end with ic Ternary acids Ex: H 2 S = hydrosulfuric Contain a polyatomic

More information

ACIDS AND BASES CONTINUED

ACIDS AND BASES CONTINUED ACIDS AND BASES CONTINUED WHAT HAPPENS WHEN AN ACID DISSOLVED IN WATER? Water acts as a Brønsted Lowry base and abstracts a proton (H+) from the acid. As a result, the conjugate base of the acid and a

More information

ADVANCED PLACEMENT CHEMISTRY ACIDS, BASES, AND AQUEOUS EQUILIBRIA

ADVANCED PLACEMENT CHEMISTRY ACIDS, BASES, AND AQUEOUS EQUILIBRIA ADVANCED PLACEMENT CHEMISTRY ACIDS, BASES, AND AQUEOUS EQUILIBRIA Acids- taste sour Bases(alkali)- taste bitter and feel slippery Arrhenius concept- acids produce hydrogen ions in aqueous solution while

More information

Acids and Bases. Feb 28 4:40 PM

Acids and Bases. Feb 28 4:40 PM Acids and Bases H O s O Cl H O O H H N H Na O H H Feb 28 4:40 PM Properties of Acids 1. Taste sour 2. Conduct electrical current 3. Liberate H 2 gas when reacted with a metal. 4. Cause certain dyes to

More information

Unit 9: Acids, Bases, & Salts

Unit 9: Acids, Bases, & Salts STUDENT VERSION Unit 9: Acids, Bases, & Salts Unit Vocabulary: Arrhenius acid Arrhenius base Bronsted-Lowry acid Bronsted-Lowry base Electrolyte hydronium ion hydroxide ion indicator (acid/base) neutralization

More information

Acids, Bases and ph Preliminary Course. Steffi Thomas 14/09/2017

Acids, Bases and ph Preliminary Course. Steffi Thomas 14/09/2017 Acids, Bases and ph Preliminary Course Steffi Thomas ssthomas@tcd.ie 14/09/2017 Outline What are acids and bases? Can we provide a general definition of acid and base? How can we quantify acidity and basicity?

More information

*KEY* * KEY * Mr. Dolgos Regents Chemistry. NOTE PACKET Unit 9: Acids, Bases, & Salts

*KEY* * KEY * Mr. Dolgos Regents Chemistry. NOTE PACKET Unit 9: Acids, Bases, & Salts *KEY* * KEY * Mr. Dolgos Regents Chemistry NOTE PACKET Unit 9: Acids, Bases, & Salts 1 *KEY* Unit 9: Acids, Bases, & Salts *KEY* Unit Vocabulary: Amphoteric Arrhenius acid Arrhenius base Bronsted-Lowry

More information

Acids and Bases. A strong base is a substance that completely ionizes in aqueous solutions to give a cation and a hydroxide ion.

Acids and Bases. A strong base is a substance that completely ionizes in aqueous solutions to give a cation and a hydroxide ion. Acid-Base Theories Arrhenius Acids and Bases (1884) Acids and Bases An acid is a substance that, when dissolved in water, increases the concentration of hydrogen ions. A base is a substance that, when

More information

Chapter 10. Acids and Bases

Chapter 10. Acids and Bases Chapter 10 Acids and Bases 1 Properties of Aqueous Solutions of Acids and Bases Aqueous acidic solutions have the following properties: 1. They have a sour taste.. They change the colors of many indicators.

More information

Acids and Bases. Unit 10

Acids and Bases. Unit 10 Acids and Bases Unit 10 1 Properties of Acids and Bases Acids Bases Taste Sour Turns Litmus Dye Red Reacts with Metals to give H 2 (g) Taste Bitter Turns Litmus Dye Blue Do Not React with Metals Reacts

More information

Equilibrium constant

Equilibrium constant Equilibrium constant Equilibrium constant Many reactions that occur in nature are reversible and do not proceed to completion. They come to an equilibrium where the net velocity = 0 The velocity of forward

More information

Acids and Bases. Reading Assignments: Acids. Bases. Chapter 15 in R. Chang, Chemistry, 8th Ed., McGraw-Hill, 2005

Acids and Bases. Reading Assignments: Acids. Bases. Chapter 15 in R. Chang, Chemistry, 8th Ed., McGraw-Hill, 2005 Reading Assignments: Chapter 15 in R. Chang, Chemistry, 8th Ed., McGraw-Hill, 2005 Or Related topics in other textbooks. Acids and Bases Consultation outside lecture room: Office Hours: Tuesday & Thursday

More information

Acids and Bases. Acid. Acid Base 2016 OTHS. Acid Properties. A compound that produces H + ions when dissolved in water. Examples!

Acids and Bases. Acid. Acid Base 2016 OTHS. Acid Properties. A compound that produces H + ions when dissolved in water. Examples! Acids and Bases Acid A compound that produces H + ions when dissolved in water. Examples! Vinegar Acetic acid Lemon Juice Citric acid Sour Candy Malic acid (and others) Milk Lactic acid HCl(aq) Acid Properties

More information

Chemistry 102 Chapter 15 ACID-BASE CONCEPTS

Chemistry 102 Chapter 15 ACID-BASE CONCEPTS General Properties: ACID-BASE CONCEPTS ACIDS BASES Taste sour Bitter Change color of indicators Blue Litmus turns red no change Red Litmus no change turns blue Phenolphtalein Colorless turns pink Neutralization

More information

Acid and Base Equilibria Chapter 16

Acid and Base Equilibria Chapter 16 Acid and Base Equilibria Chapter 16! Review Chapter 4.1 (Electrolytes)! Review Chapter 4.3 (Acid- Base ReacBons)! Memorize 7 Strong Acids (Table 4.2)! Memorize the Strong Bases (Also Table 4.2)! Review

More information

Acids and Bases. Chapter 11

Acids and Bases. Chapter 11 Acids and Bases Chapter 11 Acids and Bases in our Lives Acids and bases are important substance in health, industry, and the environment. One of the most common characteristics of acids is their sour taste.

More information

Acids and Bases. Acids and Bases in our Lives. Chapter 11

Acids and Bases. Acids and Bases in our Lives. Chapter 11 Acids and Bases Chapter 11 Acids and Bases in our Lives Acids and bases are important substance in health, industry, and the environment. One of the most common characteristics of acids is their sour taste.

More information

Chapter 6. Acids, Bases, and Acid-Base Reactions

Chapter 6. Acids, Bases, and Acid-Base Reactions Chapter 6 Acids, Bases, and Acid-Base Reactions Chapter Map Arrhenius Acid Definition Anacid is a substance that generates hydronium ions, H 3 O + (often described as H + ), when added to water. An acidic

More information

Chapters 15 & 16 ACIDS & BASES ph & Titrations

Chapters 15 & 16 ACIDS & BASES ph & Titrations PROPERTIES OF ACIDS Chapters 15 & 16 ACIDS & BASES ph & Titrations There are 5 main properties of acids: 1. sour taste 2. change the color of acidbase indicators 3. react with metals to produce H2 gas

More information

INTRODUCTORY CHEMISTRY Concepts and Critical Thinking Seventh Edition by Charles H. Corwin

INTRODUCTORY CHEMISTRY Concepts and Critical Thinking Seventh Edition by Charles H. Corwin Lecture INTRODUCTORY CHEMISTRY Concepts and Critical Thinking Seventh Edition by Charles H. Corwin Acids and Bases Properties of Acids An acid is any substance that releases hydrogen ions, H +, into water.

More information

Unit 12: Acids & Bases. Aim: What are the definitions and properties of an acid and a base? Properties of an Acid. Taste Sour.

Unit 12: Acids & Bases. Aim: What are the definitions and properties of an acid and a base? Properties of an Acid. Taste Sour. Unit 12: Acids & Bases Aim: What are the definitions and properties of an acid and a base? Mar 23 12:08 PM Properties of an Acid 3. Are electrolytes. (Dissociate and conduct electricity when aq) 2. Turns

More information

Notes: Acids and Bases

Notes: Acids and Bases Name Chemistry Pre-AP Notes: Acids and Bases Period I. Describing Acids and Bases A. Properties of Acids taste ph 7 Acids change color of an (e.g. blue litmus paper turns in the presence of an acid) React

More information

What are the properties of acids and bases?

What are the properties of acids and bases? Text CH. 14 and 15 What are the properties of acids and bases? identify acids and bases based on general observable properties explain how an indicator is used to determine whether a solution is acidic,

More information

Acid and Bases. Physical Properties. Chemical Properties. Indicators. Corrosive when concentrated. Corrosive when concentrated.

Acid and Bases. Physical Properties. Chemical Properties. Indicators. Corrosive when concentrated. Corrosive when concentrated. Physical Properties Acid and Bases Chemistry 30 Acids Corrosive when concentrated Have a sour taste Bases Corrosive when concentrated Have a bitter taste Often have a sharp odour Chemical Properties Indicators

More information

Acids and Bases. Properties, Reactions, ph, and Titration

Acids and Bases. Properties, Reactions, ph, and Titration Acids and Bases Properties, Reactions, ph, and Titration C-19 2017 Properties of acids 1. Taste Sour (don t try this except with foods). 2. Are electrolytes (conduct electricity). Some are strong, some

More information

Practice Examination #8B

Practice Examination #8B Practice Examination #8B Name: Date: 1. Equal volumes of 0.5 M HCl and 0.5 M NaOH are mixed. The total volume of the resulting mixture is 2 liters. The ph of the resulting solution is 1. A. 1 B. 2 C. 7

More information

Acids and Bases. Chapters 20 and 21

Acids and Bases. Chapters 20 and 21 Acids and Bases Chapters 20 and 21 Acid and Bases Have a sour taste. Vinegar is a solution of acetic acid. Citrus fruits contain citric acid. React with certain metals to produce hydrogen gas. React with

More information

-a base contains an OH group and ionizes in solutions to produce OH - ions: Neutralization: Hydrogen ions (H + ) in solution form

-a base contains an OH group and ionizes in solutions to produce OH - ions: Neutralization: Hydrogen ions (H + ) in solution form NOTES Acids, Bases & Salts Arrhenius Theory of Acids & Bases: an acid contains hydrogen and ionizes in solutions to produce H+ ions: a base contains an OH group and ionizes in solutions to produce OH ions:

More information

1. Properties of acids: 1. Contain the ion Bases: 1. Contain the ion. 4. Found on Table 4. Found on table

1. Properties of acids: 1. Contain the ion Bases: 1. Contain the ion. 4. Found on Table 4. Found on table For each word, provide a short but specific definition from YOUR OWN BRAIN! No boring textbook definitions. Write something to help you remember the word. Explain the word as if you were explaining it

More information

Resources:

Resources: I. A/B General A. Definitions 1. Arrhenius 2. B-L 3. Lewis *H+=H3O+ B. Properties 1. Acid 2. Base II. ACIDS A. Types 1. Binary 2. Ternary 3. Acid Anhydride B. Protic 1. mono 2. di 3. tri C. Strengths 1.

More information

ACIDS & BASES PROPERTIES OF ACIDS ACIDS PROPERTIES OF ACIDS PROPERTIES OF ACIDS 11/1/2016

ACIDS & BASES PROPERTIES OF ACIDS ACIDS PROPERTIES OF ACIDS PROPERTIES OF ACIDS 11/1/2016 SC STANDARD COVERED ACIDS & BASES Standard PS-3.7 Classify various solutions as acids or bases according to their physical properties, chemical properties (including neutralization and reaction with metals),

More information

Principles of Reactivity: The Chemistry of Acids and Bases. Acids, Bases and Arrhenius

Principles of Reactivity: The Chemistry of Acids and Bases. Acids, Bases and Arrhenius Principles of Reactivity: The Chemistry of Acids and Bases **a lot of calculations in this chapter will be done on the chalkboard Do not rely on these notes for all the material** Acids, Bases and Arrhenius

More information

SCH4U Chapter 8 review

SCH4U Chapter 8 review Name: Class: Date: SCH4U Chapter 8 review Multiple Choice Identify the choice that best completes the statement or answers the question. 1. Which statement does not describe a characteristic of acidic

More information

Public Review - Acids and Bases. June A solution of which ph would make red litmus paper turn blue? (A) 2 (B) 4 (C) 6 (D) 8

Public Review - Acids and Bases. June A solution of which ph would make red litmus paper turn blue? (A) 2 (B) 4 (C) 6 (D) 8 Public Review Acids and Bases June 2005 13. A solution of which ph would make red litmus paper turn blue? 2 4 6 8 14. Which is the most recent definition of an acid? Arrhenius Brønsted)Lowry modified Arrhenius

More information

Chapter 16: Acids and Bases I. Chem 102 Dr. Eloranta

Chapter 16: Acids and Bases I. Chem 102 Dr. Eloranta Chapter 16: Acids and Bases I Chem 102 Dr. Eloranta Acids and Bases Acids Sour taste (vinegar) Dissolve many metals Ability to neutralize bases Strong or Weak Bases Bitter taste (caffeine, poisons from

More information

Acids And Bases. H + (aq) + Cl (aq) ARRHENIUS THEORY

Acids And Bases. H + (aq) + Cl (aq) ARRHENIUS THEORY Acids And Bases A. Characteristics of Acids and Bases 1. Acids and bases are both ionic compounds that are dissolved in water. Since acids and bases both form ionic solutions, their solutions conduct electricity

More information

THE BIG IDEA: REACTIONS. 1. Review nomenclature rules for acids and bases and the formation of acids and bases from anhydrides. (19.

THE BIG IDEA: REACTIONS. 1. Review nomenclature rules for acids and bases and the formation of acids and bases from anhydrides. (19. HONORS CHEMISTRY - CHAPTER 19 ACIDS, BASES, AND SALTS OBJECTIVES AND NOTES - V14 NAME: DATE: PAGE: THE BIG IDEA: REACTIONS Essential Questions 1. What are the different ways chemists define acids and bases?

More information

UNIT 9 CHEMISTRY OF SOLUTIONS

UNIT 9 CHEMISTRY OF SOLUTIONS UNIT 9 CHEMISTRY OF SOLUTIONS Acids and Bases 2013 Pearson Education, Inc. Chapter 10, Section 1 1 1 Arrhenius Acids Arrhenius acids produce H + ions in water. H 2 O have a sour taste. turn blue litmus

More information

Unit Nine Notes N C U9

Unit Nine Notes N C U9 Unit Nine Notes N C U9 I. AcidBase Theories A. Arrhenius Acids and Bases 1. Acids contain hydronium ions (H O ) commonly referred to as hydrogen ions (H ) that dissociate in water a. Different acids release

More information

Acids and Bases. April 10, Honors Acid and Bases Intro.notebook. Q: What does it mean for a reaction not to go to completion or equilibrium?

Acids and Bases. April 10, Honors Acid and Bases Intro.notebook. Q: What does it mean for a reaction not to go to completion or equilibrium? Acids and Bases Unit objectives Q: What makes a solution acidic or basic? Q: What about an acid/base makes it acidic/basic? Q: How does and acid/base produce H+/OH In other words: What are the ways in

More information

Chapter 14: Acids and Bases

Chapter 14: Acids and Bases Chapter 14: Acids and Bases Properties of Acids and Bases What is an acid? Some examples of common items containing acids: Vinegar contains acetic acid; lemons and citrus fruits contain citric acid; many

More information

*In every acid-base reaction, equilibrium favors transfer of a proton from the stronger acid to the stronger base.

*In every acid-base reaction, equilibrium favors transfer of a proton from the stronger acid to the stronger base. 16.2 Bronsted-Lowry Acids and Bases An acid is a substance that can transfer a proton to another substance. A base is a substance that can accept a proton. A proton is a hydrogen ion, H +. Proton transfer

More information

Equations. M = n/v. M 1 V 1 = M 2 V 2 if the moles are the same n 1 n 2 you can cancel out the n s. ph = -log [H + ] poh = -log [OH - ] ph + poh = 14

Equations. M = n/v. M 1 V 1 = M 2 V 2 if the moles are the same n 1 n 2 you can cancel out the n s. ph = -log [H + ] poh = -log [OH - ] ph + poh = 14 Equations M = n/v M 1 V 1 = M 2 V 2 if the moles are the same n 1 n 2 you can cancel out the n s. ph = -log [H + ] poh = -log [OH - ] ph + poh = 14 [H 3 O + ] = 10^-pH [OH - ] = 10^-pOH [H 3 O + ] [OH

More information

Lesson Five: Acids, Bases, ph, and Buffers

Lesson Five: Acids, Bases, ph, and Buffers Lesson Five: Acids, Bases, ph, and Buffers Arrhenius Acids and Bases Acids and bases can be defined a number of ways. One of the oldest and most common ways is the definition according to Arrhenius, named

More information

CHEMISTRY. Chapter 16 Acid-Base Equilibria

CHEMISTRY. Chapter 16 Acid-Base Equilibria CHEMISTRY The Central Science 8 th Edition Chapter 16 Acid-Base Equilibria Kozet YAPSAKLI Why study acids bases? bases are common in the everyday world as well as in the lab. Some common acidic products

More information

Acids and Bases: Chapter 14 & 15

Acids and Bases: Chapter 14 & 15 Acids and Bases: Chapter 14 & 15 HW: Read Ch 14: Fill in as much of the acid base table as you can, as you read Acid base conductivity and reactivity Conduc'vity Reac'vity Hydrochloric acid high high

More information

Acids & Bases. Properties. Definitions Arrhenius acid (1880 s)

Acids & Bases. Properties. Definitions Arrhenius acid (1880 s) Name Date Properties Acid Base Taste sour/tart bitter Feel burn slippery Metal rxn yes no Litmus red blue Conductivity yes yes Definitions Arrhenius acid (1880 s) Acids & Bases In actuality the reaction

More information

A is capable of donating one or more H+

A is capable of donating one or more H+ Slide 1 / 48 1 According to the Arrhenius concept, an acid is a substance that. A is capable of donating one or more H+ B C D E causes an increase in the concentration of H+ in aqueous solutions can accept

More information

10.1 Acids and Bases in Aqueous Solution

10.1 Acids and Bases in Aqueous Solution 10.1 Acids and Bases in Aqueous Solution Arrhenius Definition of Acids and Bases An acid is a substance that gives hydrogen ions, H +, when dissolved in water. In fact, H + reacts with water and produces

More information

Properties of Acids. Base Chemistry. Properties of Bases. Three Acid and Base Theories. 1) Arrhenius Theory. May 09, Naming Acids Review

Properties of Acids. Base Chemistry. Properties of Bases. Three Acid and Base Theories. 1) Arrhenius Theory. May 09, Naming Acids Review May 09, 2013 Properties of Acids AcidAcid Base Chemistry Base Chemistry Taste sour Are strong or weak electrolytes React with bases to form water and salts React with active metals to produce H2 Turn litmus

More information

Acids, Bases, & Neutralization Chapter 20 & 21 Assignment & Problem Set

Acids, Bases, & Neutralization Chapter 20 & 21 Assignment & Problem Set Acids, Bases, & Neutralization Name Warm-Ups (Show your work for credit) Date 1. Date 2. Date 3. Date 4. Date 5. Date 6. Date 7. Date 8. Acids, Bases, & Neutralization 2 Study Guide: Things You Must Know

More information

Name Date Class ACID-BASE THEORIES

Name Date Class ACID-BASE THEORIES 19.1 ACID-BASE THEORIES Section Review Objectives Define the properties of acids and bases Compare and contrast acids and bases as defined by the theories of Arrhenius, Brønsted-Lowry, and Lewis Vocabulary

More information

Acids and Bases. Chapter 11

Acids and Bases. Chapter 11 Acids and Bases Chapter 11 Acids and Bases in our Lives Acids and bases are important substance in health, industry, and the environment. One of the most common characteristics of acids is their sour taste.

More information

Acid-base Chemistry. Unit 11.1: Into to acid base chemistry. Unit 11. Name:

Acid-base Chemistry. Unit 11.1: Into to acid base chemistry. Unit 11. Name: Name: Acid-base Chemistry Unit 11 ( F i ve cla s s peri o ds) Unit 11.1: Into to acid base chemistry 1) Self-ionization of water a) Water molecules collide and the extremely electronegative oxygen can

More information

Chemistry SAT II Review Page 1

Chemistry SAT II Review Page 1 Chemistry SAT II Review Page 1 Acids and Bases Properties of acids and bases are caused by ions 1. Hydronium ions (H 3 O + ) cause acid properties 2. Hydroxide ions (OH ) cause base properties Water -

More information

Student Review Packet Answer Key

Student Review Packet Answer Key Student Review Packet Answer Key 1. Label each of the following substances as either acid or base. a. NaOH base b. H 2 SO 4 acid c. H 3 PO 3 acid d. KOH base e. NH 3 base f. HCl acid g. LiOH base h. C

More information

Acids and Bases. Bases react with acids to form water and a salt. Bases do not commonly with metals.

Acids and Bases. Bases react with acids to form water and a salt. Bases do not commonly with metals. Acids and Bases Properties of Acids and Bases Acids taste. Lemon juice and, for example, are both aqueous solutions of acids. Acids conduct electricity; they are. Some are strong electrolytes, while others

More information

Amount of substance dissolved in 1 L of water

Amount of substance dissolved in 1 L of water Chapter 7: Phenomena Phenomena: Scientists dissolved different substances in water and then measured the [H + ] and [OH - ] concentrations in each solution. What patterns do you notice about the substances?

More information

Chapter 15. Properties of Acids. Structure of Acids 7/3/08. Acid and Bases

Chapter 15. Properties of Acids. Structure of Acids 7/3/08. Acid and Bases Chapter 15 Acid and Bases Properties of Acids! Sour taste! React with active metals! React with carbonates, producing CO 2! Change color of vegetable dyes!blue litmus turns red! React with bases to form

More information

Topic 9: Acids & Bases

Topic 9: Acids & Bases Topic 9: Acids & Bases Regents Chemistry Mr. Mancuso Electrolytes Substances that conduct electricity when Include Ability to conduct electricity is due to the presence of Dissociation: ~ 1 ~ Acids and

More information

I. What Are the Properties of Acids?

I. What Are the Properties of Acids? Chapter 6.3 DESCRIBING ACIDS AND BASES I. What Are the Properties of Acids? I. An Acid reacts with metals, reacts wth carbonates, tastes sour, and turns blue litmus paper red. A. REACTIONS WITH METALS

More information

ACID BASE TEST (2 nd half of class) Acid-base titration lab 2 nd half. Chapter 18 Acids and Bases Campbell Chemistry Name

ACID BASE TEST (2 nd half of class) Acid-base titration lab 2 nd half. Chapter 18 Acids and Bases Campbell Chemistry Name Date In Class 3/31 Thurs. Equilibrium Test Homework (to be done that night, or before coming to the next class) Watch Acid Base Video 1. What are Acids and Bases? 4/1 Fri Video 1 discussion: Identifying

More information

Acids and Bases. Acids and Bases in. our Lives. Acids and Bases in our Lives. Acids and Bases in our Lives. Chapter 11

Acids and Bases. Acids and Bases in. our Lives. Acids and Bases in our Lives. Acids and Bases in our Lives. Chapter 11 Acids and Bases Chapter 11 Acids and Bases in our Lives We produce lactic acid in our muscles when we exercise. Acid from bacteria turns milks sour in the products of yogurt and cottage cheese. We have

More information

Chapter 16 Acid-Base Equilibria

Chapter 16 Acid-Base Equilibria Page 1 of 20 Chapter 16 Acid-Base Equilibria 16.1 Acids and Bases: A Brief Review Acids: taste sour and cause certain dyes to change color. Bases: taste bitter and feel soapy. Arrhenius concept o acids

More information

Properties of Acids and Bases

Properties of Acids and Bases Chapter 15 Aqueous Equilibria: Acids and Bases Properties of Acids and Bases Generally, an acid is a compound that releases hydrogen ions, H +, into water. Blue litmus is used to test for acids. Blue litmus

More information