# Acid / Base Properties of Salts

Save this PDF as:

Size: px
Start display at page:

## Transcription

1 Acid / Base Properties of Salts n Soluble ionic salts produce may produce neutral, acidic, or basic solutions depending on the acidbase properties of the individual ions. n Consider the salt sodium nitrate, NaNO 3. It dissociates into sodium and nitrate ions. n Sodium nitrate produces a neutral solution because neither sodium nor nitrate reacts with water. Na + + H 2 O NaOH + H + NO 3 + H 2 O OH + HNO 3

2 Weak Base Salt n When sodium cyanide, NaCN, dissolves in water, it will produce sodium and cyanide ions. n As we have seen before, Na + does not react with water. n However, CN is the weak base conjugate of the acid, HCN. n CN will react with water to produce a basic solution. n What will be the ph of a 0.50 M solution of NaCN?

3 Weak Acid Salt n When ammonium nitrate, NH 4 NO 3, dissolves in water, it will produce NH 4 + and NO 3 ions. n As we have seen before, NO 3 does not react with water. n However, NH 4 + is the weak acid conjugate of the weak base, NH 3. n NH 4 + will dissociate in water to produce an acidic solution. n What will be the ph of a 0.50 M solution of NH 4 NO 3?

4 Acid-Base Conjugates n What is the ph of a M pyridinium hydrochloride (C 5 H 5 NH + Cl - ) solution if the K b of pyridine (C 5 H 5 N) = 1.5 x 10-9?

5 Salt with WA and WB Ions n Sometimes salts have a weak acid cation and a weak base anion. n In such a case, we must consider the relative strengths (K a vs. K b values) of the acid and base. n Ammonium cyanide, NH 4 CN is such a salt: NH H 2 O ó NH 3 + H 3 O + K a = 5.6 x CN + H 2 O ó OH + HCN K b = 2.5 x 10-5 n The resulting solution would be basic because cyanide is a stronger base than ammonium is an acid.

6 Amphiprotic Species n Compounds that can either accept or donate a proton are called amphiprotic. n Water is amphiprotic: H 2 O (l) + H 2 O (l) ó H 3 O + (aq) + OH (aq) n The bisulfite ion, HSO 3, is amphiprotic: HSO 3 (aq) + H 2 O (l) ó H 3 O + (aq) + SO 3 2 (aq) HSO 3 (aq) + H 2 O (l) ó OH (aq) + H 2 SO 3(aq)

7 Salt with an Amphiprotic Ion n What is the ph of a salt solution that is a 0.30 M solution of the salt potassium bisulfite?

8 Salts with an Amphiprotic Ion n Would you predict the following salts to be acidic, basic, or neutral when dissolved in water? n Na 3 PO 4 n Na 2 HPO 4 n NaH 2 PO 4

9 Relative Strengths of Acids & Bases and Koverall

10 Predicting the Net Direction of an Acid-Base Reaction n Based on the relative strengths of the acids for the forward & reverse reactions, you can predict whether an acid-base reaction will be productfavored or reactant-favored. n Consider: CH 3 CO 2 H + NH 3 ó NH CH 3 CO 2 - stronger acid weaker acid n Because acetic acid is a stronger acid than the ammonium ion, we would predict this reaction to be product-favored.

11 Predicting the Net Direction of an Acid-Base Reaction n Predict whether the following reactions are reactant-favored or product-favored: HCN + F - ó HF + CN - CO H 2 PO 4 - ó HCO HPO 4 2-

12 Acid Strength and Molecular Structure n Acid Strength and bond energy follow opposite trends. n Consider the halide series of acids: HF HCl HBr HI Increasing Acid Strength (Ka) Decreasing Bond Strength (bond dissociation energy)

13 Acid Strength and Molecular Structure Oxyacids n Acid Strengths: HClO 4 > H 2 SO 4 > H 3 PO 4 n Cl is more electronegative than S and P. n Cl better stabilizes the negative charge on the ClO 4 - anion. This is called an inductive effect.

14 Acid Strength and Molecular Structure n Acid Strengths: H 2 SO 4 > H 2 SO 3 n The sulfate ion has four oxygens which help to spread out the charge on the anion form of the molecule to more atoms resonance stabilization: n The additional oxygen is also stabilizing through inductive effects.

15 Lewis Acids and Bases n A broader concept of acids and bases than Arrhenius or Bronsted-Lowry is the Lewis definition. n A Lewis acid is a lone pair acceptor atoms, molecules, or ions with unfilled valence orbitals. n A Lewis base is a lone pair donor atoms, molecules, or ions with valence shell lone pairs.

16 Lewis Acid-Base Reactions n Formation of metal complexes in solution: n Reactions of a non-metal oxide with water to form an oxyacid:

17 Lewis Acid-Base Reactions n The reaction of ammonia with an H + ion to make ammonium can be considered a Lewis acid-base reaction. n The reaction creates a coordinate covalent bond a bond in which both electrons are provided by a single atom.

18 Reactions of metal oxides to form bases n Na 2 O (s) + H 2 O (l) à 2 NaOH (aq) n MgO (s) + H 2 O (l) à Mg(OH) 2(aq)

### Chapter 16 Acid-Base Equilibria

Chapter 16 Acid-Base Equilibria Learning goals and key skills: Understand the nature of the hydrated proton, represented as either H + (aq) or H 3 O + (aq) Define and identify Arrhenuis acids and bases.

### A) Arrhenius Acids produce H+ and bases produce OH not always used because it only IDs X OH as basic species

3 ACID AND BASE THEORIES: A) Arrhenius Acids produce H+ and bases produce OH not always used because it only IDs X OH as basic species B) Bronsted and Lowry Acid = H + donor > CB = formed after H + dissociates

### (Label the Conjugate Pairs) Water in the last example acted as a Bronsted-Lowry base, and here it is acting as an acid. or

Chapter 16 - Acid-Base Equilibria Arrhenius Definition produce hydrogen ions in aqueous solution. produce hydroxide ions when dissolved in water. Limits to aqueous solutions. Only one kind of base. NH

### Chapter 14 Acids and Bases

Properties of Acids and Bases Chapter 14 Acids and Bases Svante Arrhenius (1859-1927) First to develop a theory for acids and bases in aqueous solution Arrhenius Acids Compounds which dissolve (dissociate)

### Chapter 7 Acids and Bases

Chapter 7 Acids and Bases 7.1 The Nature of Acids and Bases 7.2 Acid Strength 7.3 The ph Scale 7.4 Calculating the ph of Strong Acid Solutions 7.5 Calculating the ph of Weak Acid Solutions 7.6 Bases 7.7

### 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

### Topic-1 Lowry - Bronsted and Lewis theory of acids and bases with examples and applications

Topic-1 Lowry - Bronsted and Lewis theory of acids and bases with examples and applications VERY SHORT ANSWER QUESTIONS 1. What is bronsted acid and base give one example? Strength of bronsted acids and

### Chapter 10 - Acids & Bases

Chapter 10 - Acids & Bases 10.1-Acids & Bases: Definitions Arrhenius Definitions Acids: substances that produce hydrogen ions when dissolved in H 2 O Common Strong Acids: Common Weak acids: Organic carboxylic

### Talk n Acids & Bases... Lady Dog! Definitions

Talk n Acids & Bases... Lady Dog! Definitions So far in this course, we have looked at processes in chemistry that deal with, or are best explained by, ionic salts or molecules. Now we will turn our attention

### Chem 106 Thursday, March 10, Chapter 17 Acids and Bases

Chem 106 Thursday, March 10, 2011 Chapter 17 Acids and Bases K a and acid strength Acid + base reactions: Four types (s +s, s + w, w + s, and w + w) Determining K from concentrations and ph ph of aqueous

### Chpt 16: Acids and Bases

Chpt 16 Acids and Bases Defining Acids Arrhenius: Acid: Substances when dissolved in water increase the concentration of H+. Base: Substances when dissolved in water increase the concentration of OH- Brønsted-Lowry:

### 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

### Lecture Presentation. Chapter 16. Acid Base Equilibria. John D. Bookstaver St. Charles Community College Cottleville, MO Pearson Education, Inc.

Lecture Presentation Chapter 16 Acid Base Equilibria John D. Bookstaver St. Charles Community College Cottleville, MO Some Definitions Arrhenius An acid is a substance that, when dissolved in water, increases

### Reactions in Aqueous Solutions I: Acids, Bases & Salts

10 Reactions in Aqueous Solutions I: Acids, Bases & Salts CHAPTER GOALS 1. Properties of Aqueous Solutions of Acids and Bases 2. The Arrhenius Theory 3. The Hydronium Ion (Hydrated Hydrogen Ion) 4. The

### CH 15 Summary. Equilibrium is a balance between products and reactants

CH 15 Summary Equilibrium is a balance between products and reactants Use stoichiometry to determine reactant or product ratios, but NOT reactant to product ratios. Capital K is used to represent the equilibrium

### Aqueous Equilibria: Acids and Bases

Slide 1 Chapter 14 Aqueous Equilibria: Acids and Bases Slide 2 Acid Base Concepts 01 Arrhenius Acid: A substance which dissociates to form hydrogen ions (H + ) in solution. HA(aq) H + (aq) + A (aq) Arrhenius

### Chapter 16. Chemistry, The Central Science, 11th edition Theodore L. Brown, H. Eugene LeMay, Jr., and Bruce E. Bursten

Chemistry, The Central Science, 11th edition Theodore L. Brown, H. Eugene LeMay, Jr., Bruce E. Bursten Chapter 16 John D. Bookstaver St. Charles Community College Cottleville, MO Some Definitions Arrhenius

### 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

### Cu 2+ (aq) + 4NH 3(aq) = Cu(NH 3) 4 2+ (aq) I (aq) + I 2(aq) = I 3 (aq) Fe 3+ (aq) + 6H 2O(l) = Fe(H 2O) 6 3+ (aq) Strong acids

There are three definitions for acids and bases we will need to understand. Arrhenius Concept: an acid supplies H + to an aqueous solution. A base supplies OH to an aqueous solution. This is the oldest

### Acid-Base Character of Salt Solutions. Cations. Cations are potentially acidic, but some have no effect on ph.

Acid-Base Character of Salt Solutions The ph of a salt solution will depend on the acidbase nature of both the cation and anion. Cations Cations are potentially acidic, but some have no effect on ph. M(H

Section 32 Acids and Bases 1 Copyright (c) 2011 by Michael A. Janusa, PhD. All rights reserved. Acid-Base Concepts Acids and bases are among the most familiar and important of all chemical compounds. You

### AP Chemistry CHAPTER 16 STUDY GUIDE Acid-Base Equilibrium

AP Chemistry CHAPTER 16 STUDY GUIDE AcidBase Equilibrium 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

### 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

### IB Chemistry ABS Introduction An acid was initially considered a substance that would produce H + ions in water.

IB Chemistry ABS Introduction An acid was initially considered a substance that would produce H + ions in water. The Brønsted-Lowry definition of an acid is a species that can donate an H + ion to any

### Acids and Bases Review Worksheet II Date / / Period. Molarity. moles L. Normality [H 3 O +1 ] [OH -1 ] ph poh

Honors Chemistry Name Acids and Bases Review Worksheet II Date / / Period Solute Name of Solute Molar Mass grams mole Molarity moles L Normality [H 3 O +1 ] [OH ] ph poh Acidic or Basic 1. HCl Hydrochloric

### Chemistry: The Central Science. Chapter 16: Acid-Base Equilibria. 16.1: Acids and Bases: A Brief Review

Chemistry: The Central Science Chapter 16: Acid-Base Equilibria 16.1: Acids and Bases: A Brief Review Acids have a sour taste and cause certain dyes to change color Base have a bitter taste and feel slippery

### 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

### Unit 4-1 Provincial Practice Questions Page 1

Page 1 Page 2 Page 3 Page 4 Page 5 1.00 Page 6 Page 7 Page 8 55. The conjugate base of HAsO 4 2 is A. H 3 O + B. 3 AsO 4 C. H 3 AsO 4 D. H 2 AsO 4 56. Consider the following acidbase equilibrium: HC 6

### Acids and Bases Written Response

Acids and Bases Written Response January 1999 4. Consider the salt sodium oxalate, Na2C2O4. a) Write the dissociation equation for sodium oxalate. (1 mark) b) A 1.0M solution of sodium oxalate turns pink

### CHAPTER 14 THE CHEMISTRY OF ACIDS AND BASES

CHAPTER 14 THE CHEMISTRY OF ACIDS AND BASES "ACID"--Latin word acidus, meaning sour. (lemon) "ALKALI"--Arabic word for the ashes that come from burning certain plants; water solutions feel slippery and

### Chapter 6 Acids and Bases

Chapter 6 Acids and Bases Introduction Brønsted acid-base reactions are proton transfer reactions. Acids donate protons to bases. In the process, the acid is converted into its conjugate base and the base

### 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

### acid : a substance which base : a substance which H +

4.4. BronstedLowry Theory of A&B acid : a substance which base : a substance which H Typical BronstedLowry AB rxn eqn: eg1) NH 3 H 2 O NH 4 base acid OH eg2) CH 3 COOH H 2 O CH 3 COO H 3 O H 2 O an acid

### Ch 16: Acids and Bases

Ch 16: Acids and Bases A c i d s a n d B a s e s C h 1 6 P a g e 1 Homework: Read Chapter 16 Work out sample/practice exercises in the sections, Chapter problems: 39, 41, 49, 63, 67, 83, 91, 95, 99, 107,

### AP Chemistry: Acid-Base Chemistry Practice Problems

Name AP Chemistry: Acid-Base Chemistry Practice Problems Date Due Directions: Write your answers to the following questions in the space provided. For problem solving, show all of your work. Make sure

### 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

### Brønsted-Lowry Acid-Base Model. Chapter 13 Acids and Bases. The Nature of H + Outline. Review from Chapter 4. Conjugate Pairs

Brønsted-Lowry Acid-Base Model William L Masterton Cecile N. Hurley Edward J. Neth cengage.com/chemistry/masterton Chapter 13 Acids and Bases Brønsted-Lowry Johannes Brønsted (1879-1947) Thomas Lowry (1874-1936)

### Chem 105 Tuesday March 8, Chapter 17. Acids and Bases

Chem 105 Tuesday March 8, 2011 Chapter 17. Acids and Bases 1) Define Brønsted Acid and Brønsted Base 2) Proton (H + ) transfer reactions: conjugate acid-base pairs 3) Water and other amphiprotic substances

### Arrhenius base is one that dissociates in water to form hydroxide ions.

Chemistry Notes: Acids and Bases Arrhenius base is one that dissociates in water to form hydroxide ions. Arrhenius acid is on that dissociates in water to form hydrogen ions (protons). A Bronsted-Lowry

### UNIT IV PPT #3 Ka and Kb KEY.notebook. November 23, WHAT IS Ka? UNIT IV. CALCULATIONS USING Ka. WHAT IS Ka? Nov 10 9:42 PM.

WHAT IS Ka? Recall: Find ph of 0.100 M HCl. But What is ph of 0.10 M HF? UNIT IV Ka and Kb CALCULATIONS USING Ka I. [H 3O + ] (or ph) from Ka Ex. Find the [H 3O + ] in 0.10 M HF. WHAT IS Ka? Look at equilibrium

### NATURE OF ACIDS & BASES

General Properties: NATURE OF ACIDS & BASES 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

### CHAPTER 13: ACIDS & BASES. Section Arrhenius Acid & Bases Svante Arrhenius, Swedish chemist ( ).

CHAPTER 13: ACIDS & BASES Section 13.1 Arrhenius Acid & Bases Svante Arrhenius, Swedish chemist (1839-1927). He understood that aqueous solutions of acids and bases conduct electricity (they are electrolytes).

### The best things in life aren t things

Chemistry 132 NT The best things in life aren t things Anon 1 2 Chem 132 NT Acids and Module 2 Acid and Base s Relative s of Acids and Acidbase indicator dye. 3 1 Review Arrhenius ConceptAcids H+ donors

### Chapter 15: Acids and Bases Arrhenius Definitions:

Chapter 15: Acids and Bases Arrhenius Definitions: Acids and Bases s - compounds that produce an increase in [H + ] when dissolved in water bases - compounds that produce an increase in [OH ] when dissolved

### 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

### 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),

### Name%% %Period%% % Precipitation+Reaction+Practice+

Name%% %Period%% % Precipitation+Reaction+Practice+ 1.%Write%a%balanced%equation%for%the%following%precipitation%reactions,%circle%the%precipitate%that%is% formed:% a) K 3 PO 4 %+%3%Sr(NO 3 ) 2 %% % %

### Strong Acid + Strong Base

Acid-Base Reactions There are four acid-base reaction combinations that are possible: Strong acids strong bases Strong acids weak bases Weak acids strong bases Weak acids weak bases General name neutralization

### 1) What is the Arrhenius definition of an acid? Of a base? 2) What is the Bronsted-Lowry definition of an acid? Of a base?

Problems, Chapter 16 (with solutions) NOTE: Unless otherwise stated, assume T = 25. C in all problems) 1) What is the Arrhenius definition of an acid? Of a base? An Arrhenius acid is a substance that produces

### Acids, Bases and Salts

(Hebden Unit 4 page 109 182) 182) We will cover the following topics: 1. Definition of Acids and Bases 2. Bronsted-Lowry Acids and Bases 2 1 Arrhenius Definition of Acids and Bases An acid is a substance

### THEORIES OF ACIDS AND BASES

THEORIES OF ACIDS AND BASES These notes describe the Arrhenius, and Bronsted-Lowry, theories of acids and bases, and explains the relationships between them. It also explains the concept of a conjugate

### MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.

Exam Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) The effect of a catalyst on a chemical reaction is to. A) increase the entropy change

### Review: Acid-Base Chemistry. Title

Review: Acid-Base Chemistry Title Basics General properties of acids & bases Balance neutralization equations SA + SB water + salt Arrhenius vs. Bronsted-Lowry BL plays doubles tennis match with H+) Identify

### ph calculations MUDr. Jan Pláteník, PhD Brønsted-Lowry concept of acids and bases Acid is a proton donor Base is a proton acceptor

ph calculations MUDr. Jan Pláteník, PhD Brønsted-Lowry concept of acids and bases Acid is a proton donor Base is a proton acceptor HCl(aq) + H 2 O(l) H 3 O + (aq) + Cl - (aq) Acid Base Conjugate acid Conjugate

### 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

### Chemistry 12. Bronsted Acids and Equilibria

Worksheet 42 Bronsted Acids and Equilibria Name Date Due Hand In With Corrections by Chemistry 12 Worksheet 42 Bronsted Acids and Equilibria 82 1. Write the formula for a proton 2. Write the formula for

### Chapter In each case the conjugate base is obtained by removing a proton from the acid: (a) OH (b) I (c)

Practice Exercises 16.1 Conjugate acid base pairs (a), (c), and (f) (b) The conjugate base of I is I (d) The conjugate base of N 2 is N 2 and the conjugate base of N 4 is N 3 (e) The conjugate acid of

Organic Chemistry I Dr Alex Roche Organic chemistry is the chemistry of Carbon and its compounds. Organic molecules constitute the essence of life (fats, sugars, proteins, DNA), and also permeate our everyday

### Chapter 4. The Major Classes of Chemical Reactions 4-1

Chapter 4 The Major Classes of Chemical Reactions 4-1 The Major Classes of Chemical Reactions 4.1 The Role of Water as a Solvent 4.2 Writing Equations for Aqueous Ionic Reactions 4.3 Precipitation Reactions

### Chemistry 12 Provincial Exam Workbook Unit 04: Acid Base Equilibria. Multiple Choice Questions

R. Janssen, MSEC Chemistry 1 Provincial Workbook (Unit 0), P. 1 / 69 Chemistry 1 Provincial Exam Workbook Unit 0: Acid Base Equilibria Multiple Choice Questions 1. Calculate the volume of 0.00 M HNO needed

### AP Chapter 15 & 16: Acid-Base Equilibria Name

AP Chapter 15 & 16: Acid-Base Equilibria Name Warm-Ups (Show your work for credit) Date 1. Date 2. Date 3. Date 4. Date 5. Date 6. Date 7. Date 8. AP Chapter 15 & 16: Acid-Base Equilibria 2 Warm-Ups (Show

### Acids & Bases. Chapter 17

Acids & Bases Chapter 17 Arrhenius Definition: Classic Definition of Acids and Bases Acid: A substance that increases the hydrogen ion concetration, [H + ], (also thought of as hydronium ion, H 3 O + )

### This is Aqueous Acid Base Equilibriums, chapter 16 from the book Principles of General Chemistry (index.html) (v. 1.0).

This is Aqueous Acid Base Equilibriums, chapter 16 from the book Principles of General Chemistry (index.html) (v. 1.0). This book is licensed under a Creative Commons by-nc-sa 3.0 (http://creativecommons.org/licenses/by-nc-sa/

### CHAPTER 7.0: IONIC EQUILIBRIA

Acids and Bases 1 CHAPTER 7.0: IONIC EQUILIBRIA 7.1: Acids and bases Learning outcomes: At the end of this lesson, students should be able to: Define acid and base according to Arrhenius, Bronsted- Lowry

### Chapter 8 Acid-Base Equilibria

Chapter 8 Acid-Base Equilibria 8-1 Brønsted-Lowry Acids and Bases 8-2 Water and the ph Scale 8-3 The Strengths of Acids and Bases 8-4 Equilibria Involving Weak Acids and Bases 8-5 Buffer Solutions 8-6

### H = Hydrogen atoms O = Oxygen atoms

CHEMISTRY CP Name: KEY Period: TEST DATE: Unit 8 Review Sheet KEY: Properties of Water, Solutions, Concentration, Acids and Bases PROPERTIES OF WATER 1. Define the following terms: polarity, surface tension,

### 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

### Contents and Concepts

Learning Objectives Chapter 15 Acid Base Concepts Arrhenius Concept of Acids and Base a. Define and according to the Arrhenius concept. Brønsted Lowry Concept of Acids and Bases a. Define and according

### Mr. Storie 40S Chemistry Student Acid and bases Unit. Acids and Bases

Acids and Bases 1 UNIT 4: ACIDS & BASES OUTCOMES All important vocabulary is in Italics and bold. Outline the historical development of acid base theories. Include: Arrhenius, BronstedLowry, Lewis. Write

### Strong and Weak. Acids and Bases

Strong and Weak Acids and Bases Strength of Acids H2SO4 HSO4 - + H + HNO3 NO3 - + H + Strong Acids HCl Cl - + H + H3PO4 H2PO4 - + H + Phosphoric acid Moderate Acid CH3COOH CH3COO - + H + Acetic acid HF

### REVIEW QUESTIONS Chapter Identify the Lewis acid and base in each of the following reactions:

Chemistry 102 REVIEW QUESTIONS Chapter 16 1. For each reaction below, identify the Brønsted-Lowry acid and base and their conjugates: A) NH 4 + (aq) + CN (aq) HCN (aq) + NH 3 (aq) B) (CH 3 ) 3 N (aq) +

### 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 +

### Acids. There are two types of acids: 1. Binary Acid 2. Oxyacid

Acids There are two types of acids: 1. Binary Acid 2. Oxyacid Binary acids are acids that are composed of hydrogen and one other element alone. An example of this is H2S. When naming binary acids, the

### 15 Acids, Bases, and Salts. Lemons and limes are examples of foods that contain acidic solutions.

15 Acids, Bases, and Salts Lemons and limes are examples of foods that contain acidic solutions. Chapter Outline 15.1 Acids and Bases 15.2 Reactions of Acids and Bases 15.3 Salts 15.4 Electrolytes and

### Chem12 Acids : Exam Questions M.C.-100

Chem12 Acids : Exam Questions M.C.-100 1) Given : HPO 4 2- (aq) + NH 4 + (aq) H 2 PO 4 - (aq) + NH 3 (aq), the strongest acid in the above equation is : a) NH 4 + b) HPO 4 2- c) NH 3 d) H 2 PO 4-2)

### Worksheet 4.1 Conjugate Acid-Base Pairs

Worksheet 4.1 Conjugate AcidBase Pairs 1. List five properties of acids that are in your textbook. Acids conduct electricity, taste sour, neutralize bases, change the color of indicators, and react with

### Acids and Bases. Slide 1 / 208. Slide 2 / 208. Slide 3 / 208. Table of Contents: Acids and Bases

Slide 1 / 208 Slide 2 / 208 Acids and Bases Table of Contents: Acids and Bases Click on the topic to go to that section Slide 3 / 208 Properties of Acids and Bases Conjugate Acid and Base Pairs Amphoteric

### 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

### Acids and Bases. Properties of Acids. Properties of Bases. Slide 1 / 174. Slide 2 / 174. Slide 3 / 174

Slide 1 / 174 Acids and Bases PSI Chemistry covers the material approximately up to slide 75. Properties of Acids Slide 2 / 174 Acids release hydrogen ion(s) into (aqueous) solution Acids neutralize bases

### K A K B = K W pk A + pk B = 14

Relationship between the ionization constants of an acid and its conjugate base HCN (aq) H 2 O(l) CN (aq) H O (aq) Conjugate couple The product between of an acid and of its conjugate base is : p p 14

### Announcements. There are 3-classes of chemical reactions that occur in aqueous solution.

Announcements Exam 1 Results: Mean: 71% Range: 39.5%-93.5% Median: 72% Other Bio-LS Class Mean 72% Please read Chapter 4 and complete problems. Please see me for help. There are 3-classes of chemical reactions

### Practice Exam 1: Answer Key

CHM 2046 Practice Exam 1: Answer Key Important: Bubble in A, B or C as the test form code at the top right of your answer sheet. Useful information is provided at the end. VERSION A 1. The reaction A(aq)

### Really useful information = H + = K w. K b. 1. Calculate the ph of a solution made by pouring 5.0 ml of 0.20 M HCl into 100. ml of water.

Acid Base Equilibrium Putting it all together HA H + + A H + A incomingsa HA +incomingsa Strong Acids HCl HNO3 HBr H2SO4 HI HClO4 HClO3 Really useful information K w H + OH K w M V M V B + H2O OH + HB

### ACID-BASE REACTIONS & THE ph SCALE

Introduction ACID-BASE REACTIONS & THE ph SCALE In acid-base reactions in aqueous solution, the active agents are commonly the hydronium ion H 3 0 + or the hydroxide ion OH. The range of concentrations

### NH 3 (aq) + HF (aq) F (aq) + NH 4. NaOH (aq) + H 2 O (l) NaOH (aq) + H 2 O (l) KOH (aq) + H 2 CO 3 (aq) KHCO 3 (aq) + H 2 O (l)

Quiz 2.1 Acid-Base Definitions 1. The conjugate base of H 3O + is: A. H 3O B. H 2O C. H 3O D. H 3O + E. HO 2. What is the conjugate acid of C 6H 5NH 2? A. C 6H 5NH 3 + B. C 6H 5NH C. C 6H 5NH 4 + D. C

### 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,

### Chemistry 51 Chapter 5 OCTET RULE & IONS

OCTET RULE & IONS Most elements, except noble gases, combine to form compounds. Compounds are the result of the formation of chemical bonds between two or more different elements. In the formation of a

### [H ] [OH ] 5.6 " 10

Howemork set solutions 10: 11.1 Table 11.5 of the tet contains a list of important Brønsted acids and bases. (a) both, base, (c) acid, (d) base, (e) acid, (f) base, (g) base, (h) base, (i) acid, (j) acid.

### What are Acids &Bases?

Chemistry 481(01) Spring 2013 Instructor: Dr. Upali Siriwardane e-mail: upali@coes.latech.edu Office: CTH 311 Phone 257-4941 Office Hours: 8:00-9:00 a.m. & 11:00-12:00 a.m. M, W; 8:00-10:00 a.m. Tu, Th,

### Calorimetry, Heat and ΔH Problems

Calorimetry, Heat and ΔH Problems 1. Calculate the quantity of heat involved when a 70.0g sample of calcium is heated from 22.98 C to 86.72 C. c Ca= 0.653 J/g C q = 2.91 kj 2. Determine the temperature

### 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

### What is the correct name and bonding of BF 3? What is the correct name and bonding of BF 3?

What is the correct name and bonding of BF 3? 1. boron trifluoride, covalent compound 2. boron trifluoride, ionic compound 3. boron fluoride, covalent compound 4. boron fluoride, ionic compound What is

### The ph of aqueous salt solutions

The ph of aqueous salt solutions Sometimes (most times), the salt of an acid-base neutralization reaction can influence the acid/base properties of water. NaCl dissolved in water: ph = 7 NaC 2 H 3 O 2

### Acid-Base Equilibrium Solving ph Problems for Weak Acids and Bases

Solving ph Problems for Weak Acids and Bases How do we classify a compound as an acid or base? Recall that the word acid is from the Latin word acidus which means sour. The word alkali is an Arabic word

### Molecular Definitions of Acids and Bases: H 2 O (l)

Molecular Definitions of Acids and Bases: Arrhenius Definition: An acid produces hydrogen ions (H + ) in an aqueous solution. For example: Consider hydrochloric acid, HCl, which when dissolved in water

### (A) Composition (B) Decomposition (C) Single replacement (D) Double replacement: Acid-base (E) Combustion

AP Chemistry - Problem Drill 08: Chemical Reactions No. 1 of 10 1. What type is the following reaction: H 2 CO 3 (aq) + Ca(OH) 2 (aq) CaCO 3 (aq) + 2 H 2 O (l)? (A) Composition (B) Decomposition (C) Single