Pre-lab report (p.159) due at the start of lab Single session two hour lab experiment. Teams analyze 3 assigned reactions.

Size: px
Start display at page:

Download "Pre-lab report (p.159) due at the start of lab Single session two hour lab experiment. Teams analyze 3 assigned reactions."

Transcription

1 Analysis of Reactions, E 6 E 6 Pre-lab report (p.159) due at the start of lab Single session two hour lab experiment. Teams analyze 3 assigned reactions. - one reaction may or may not be a non-reaction. Team report is due at the end of lab. - report = write up of the analysis of the 3 reactions. Teams present one of the 3 reactions in discussion during the first hour of the next session. Analysis of a Non - Reaction Record your qualitative observations of individual reagents and the reagent mixture. Design and conduct a minimum of two quantitative tests and experiments to confirm that no reaction occurred. Do NOT conduct reference blank tests!

2 Analysis of A Non-Reaction SnCl 4 (aq) + KI (aq) Clear and colorless Analysis of A Non-Reaction Example 1 SnCl 4 (aq) + KI (aq) colorless colorless Q. Circle any test that can support no reaction : A) The temperature of the original solutions and reaction mixture shows no t. B) KCl (aq) + KI (aq) + hexane clear, colorless phases C) SnCl 2 (aq) +I 2 (aq) + hexane clear, colorless phases. Answer: SnCl 4 + KI no reaction? Q. Why does Test C (SnCl 2 + I 2 colorless hexane phase) support no reaction? Test C Hexane is colorless and therefore reaction occurred net rxn: Sn 2+ + I 2 Sn I -

3 Analysis of a non - reaction Example 2: Ag (s) + Co(NO 3 ) 2(aq) no visible change silver solid clear red solution Q. What tests could you conduct to confirm that no reaction has occurred? Reaction? Record your qualitative observations of individual reagents and the reagent mixture. 1) Determine the identity of reactants/spectators. Record hypothesis, tests, observations, and conclusions. Analysis of Reactions: Reaction 1 Reaction 1: Add 20mL 0.10M SnCl 2 to 2.0mL of 0.10M Hg(NO 3 ) 2 SnCl 2 + Hg(NO 3 ) 2 white ppt. gray-bl ppt.

4 Reaction: Add 20mL 0.10M SnCl 2 to 2.0mL of 0.10M Hg(NO 3 ) 2 Test: Identify Reactant and Spectator Species. Hypothesis: Hg 2+ is a reactant. 20mL 0.10M SnCl 2 to 2.0mL of 0.10M NaNO 3 Q. Is the test an appropriate test of the hypothesis? Identify Reactant and Spectator Species. Reaction 1: Add 20 ml 0.10 M SnCl 2 to 2.0 ml of 0.10M Hg(NO 3 ) 2 Test 1 SnCl 2 + Na(NO 3 )? Reaction: Add 20mL 0.10M SnCl 2 to 2.0mL of 0.10M Hg(NO 3 ) 2 Test 1: Identify Reactant and Spectator Species. Hypothesis: Hg 2+ is a reactant. 20mL 0.10M SnCl 2 to 2.0mL of 0.10M NaNO 3 no reaction Q. What do the test results tell you about the reaction?

5 1. Identify Reactant and Spectator Species. Reaction 1: Add 20mL 0.10M SnCl 2 to 2.0mL of 0.10M Hg(NO 3 ) 2 Test 2 NaCl + Hg(NO 3 ) 2? Q. What do the test results tell you about the reaction? 2. Reaction Products? Compare product properties to known samples. Consult reference texts and compare listed properties to observed product properties Conduct tests to help confirm product ID. Write a net reaction. Product Identification Reaction: SnCl 2 + Hg(NO 3 ) 2 solid Tests determine: The reactants are Hg 2+ and Sn 2+. Q. Based on your knowledge and logic: 1. What type of reaction is occurring? 2. What is the likely identity of the solid product?

6 Product Identification Reactants: Sn 2+ + Hg 2+ solid =? Possible oxidation state of reactants: Sn Sn 2+ Sn 4+ Hg Hg 2+ Solid product? = Analysis of Reactions: Reaction 2 Reaction 2: 0.10 M CuSO4 + HCl (con) yellow-green solution Q. What type of reaction is likely occurring?. Design/conduct tests to identify reactants and spectators. Reaction: 0.10 M CuSO 4 + HCl (con) yellow-green solution blue colorless Q. Test that will directly determine if Cl - is a reactant? Team tests: (1) Add concentrated HNO 3 to 0.1 M CuSO 4. (2) Add concentrated HCl to 0.1M Cu(NO 3 ) 2. (3) Add concentrated NaCl to 0.1 M CuSO 4. Q. If the hypothesis is correct, what will you observe when conducting the test?

7 Reaction: 0.10 M CuSO 4 + HCl (con) yellow-green solution blue colorless Q. Test that will directly confirm if SO 4 2- is a spectator? Team tests: (1) Add concentrated HNO 3 to 0.1 M CuSO 4. (2) Add concentrated HCl to 0.1M Cu(NO 3 ) 2. (3) Add concentrated NaCl to 0.1 M CuSO 4. Q. If the hypothesis is correct, what will you observe when conducting the test? Identify the reaction type. (after confirming reactant identities) Reactants confirmed: Cu 2+ (aq) + Cl- (aq) yellow-green solution (blue) (colorless) Type of reaction?: Identify Products and Write A Net Reaction. HCl (con) + CuSO 4(aq) yellow-green Colorless blue Q. Complete the net reaction: _ Cl - + [Cu(H 2 O) 4 ] 2+

8 Confirm the product identity. Confirm the product identity. Confirm the product identity. [Cu(H 2 O) 4 ] Cl - [Cu(Cl) 4 ] H 2 O Q. How might you further confirm the identity of the product and/or show that the product is formed from a Lewis acid-base equilibrium reaction)? [Cu(H 2 O) 4 ] Cl - Example 1. Add a better base such as [Cu(Cl) 4 ] H 2 O [Cu(H 2 O) 4 ] Cl NH 3 [Cu(NH 3 ) 4 ] H 2 O [Cu(Cl) 4 ] H 2 O Note: Cu 2+ bonds with NH 3 rather than Cl -.

9 Confirm the product identity. [Cu(H 2 O) 4 ] Cl - [Cu(Cl) 4 ] H 2 O Example 1. Add an acid such as Questions? Contact nkerner@umich.edu

E 6 Lab. Pre-lab report (p.170) due at the start of lab. Single session two hour lab experiment. Teams analyze 3 assigned reactions.

E 6 Lab. Pre-lab report (p.170) due at the start of lab. Single session two hour lab experiment. Teams analyze 3 assigned reactions. Analysis of Reactions, E 6 E 6 Lab Pre-lab report (p.170) due at the start of lab Single session two hour lab experiment. Teams analyze 3 assigned reactions. - one reaction may or may not be a non-reaction.

More information

E5 Lewis Acids and Bases: lab 2. Session two lab Parts 2B, 3, and 4. Session one lab Parts 1and 2A. Aquo Complex Ions

E5 Lewis Acids and Bases: lab 2. Session two lab Parts 2B, 3, and 4. Session one lab Parts 1and 2A. Aquo Complex Ions E5 Lewis Acids and Bases: lab 2 Session one lab Parts 1and 2A Session two lab Parts 2B, 3, and 4 Part 2B. Complexation, Structure and Periodicity Compare the reactivity of aquo complex ions containing

More information

E5 Lewis Acids and Bases: lab 2. Session two lab Parts 2B, 3, and 4. Session one lab Parts 1and 2A. Aquo Complex Ions. Aquo Complex Ion Reactions

E5 Lewis Acids and Bases: lab 2. Session two lab Parts 2B, 3, and 4. Session one lab Parts 1and 2A. Aquo Complex Ions. Aquo Complex Ion Reactions E5 Lewis Acids and Bases: lab 2 Session one lab Parts 1and 2A Part 2B. Complexation, Structure and Periodicity Compare the reactivity of aquo complex ions containing pre-transition, transition, and post-transition

More information

Project: Chemical Equilibrium Lab

Project: Chemical Equilibrium Lab Project: Chemical Equilibrium Lab Potential Credits: /20 Name: Goal and Instructions: To observe the macroscopic properties of chemical systems at equilibrium and to explain the observations obtained by

More information

Experiment 21. Voltaic Cells

Experiment 21. Voltaic Cells Experiment 21 Voltaic Cells INTRODUCTION: A voltaic cell is a specially prepared system in which an oxidation-reduction reaction occurs spontaneously. The oxidation and reduction half-reactions are separated

More information

Chapter 18. Solubility and Complex- Ionic Equilibria

Chapter 18. Solubility and Complex- Ionic Equilibria Chapter 18 Solubility and Complex- Ionic Equilibria 1 The common ion effect Le Chatelier Why is AgCl less soluble in sea water than in fresh water? AgCl(s) Ag + + Cl Seawater contains NaCl 2 Problem: The

More information

Name: 2 16 GSI: Section: (Bonus) (+03) Total 75 (+03)

Name: 2 16 GSI: Section: (Bonus) (+03) Total 75 (+03) Name: Final Grading key Page 2/9 Chemistry 125/126, Exam 1 Tuesday, March 13, 2012 Welcome to the first hourly exam for Chemistry 125/126. This exam consists of 6 questions worth a total of 75 points plus

More information

Halogens HALOGENS. Parts 2A and 2B. Chem : Feb. 19, 20 and March 3. Compare the properties and reactivity of the halogens and halides

Halogens HALOGENS. Parts 2A and 2B. Chem : Feb. 19, 20 and March 3. Compare the properties and reactivity of the halogens and halides Chem. 125-126: Feb. 19, 20 and March 3 Experiment 3 Session 2 (Three hour lab) Complete Experiment 3 Parts 2B and 3 Complete team report Complete discussion presentation Parts 2A and 2B Compare the properties

More information

Experiment Three. Lab two: Parts 2B and 3. Halogens used in Parts 2 and 3. Lab one: Parts 1 and 2A. Halogens (Family VIIA) used in Parts 2 and 3

Experiment Three. Lab two: Parts 2B and 3. Halogens used in Parts 2 and 3. Lab one: Parts 1 and 2A. Halogens (Family VIIA) used in Parts 2 and 3 Experiment Three Lab one: Parts 1 and 2A Lab two: Parts 2B and 3 1 1A 1 H 1s 1 2 IIA 3 Li 2s 1 1 1 Na 3s 1 1 9 K 4s 1 3 7 Rb 5s 1 5 5 Cs 6s 1 8 7 Fr 7s 1 4 Be 2s 2 1 2 Mg 3s 2 3 IIIB 4 IVB 5 VB 6 VIB 7

More information

HW 7 KEY!! Chap. 7, #'s 11, 12, odd, 31, 33, 35, 39, 40, 53, 59, 67, 70, all, 77, 82, 84, 88, 89 (plus a couple of unassigned ones)

HW 7 KEY!! Chap. 7, #'s 11, 12, odd, 31, 33, 35, 39, 40, 53, 59, 67, 70, all, 77, 82, 84, 88, 89 (plus a couple of unassigned ones) HW 7 KEY!! Chap. 7, #'s 11, 12, 15-21 odd, 31, 33, 35, 39, 40, 53, 59, 67, 70, 72-75 all, 77, 82, 84, 88, 89 (plus a couple of unassigned ones) 11) NOTE: I used the solubility rules that I have provided

More information

Unit 5: Chemical Equations and Reactions & Stoichiometry

Unit 5: Chemical Equations and Reactions & Stoichiometry pg. 10 Unit 5: Chemical Equations and Reactions & Stoichiometry Chapter 8: Chemical Equations and Reactions 8.1: Describing Chemical Reactions Selected Chemistry Assignment Answers (Section Review on pg.

More information

Name Period CH 180 Practice Test: Chapters 3 and 4

Name Period CH 180 Practice Test: Chapters 3 and 4 Name Period CH 180 Practice Test: Chapters 3 and 4 Multiple Choice: 1. 11. 2. 12. 3. 13. 4. 14. 5. 15. 6. 16. 7. 17. 8. 18. 9. 19. 10. 20. 21. 22. 23. 24. 25. 26. 27. 1 Directions: Answer all questions.

More information

a) This reaction is (circle one): ENDOTHERMIC/EXOTHERMIC b) provide the correct chemical names for the given chemical formulas:

a) This reaction is (circle one): ENDOTHERMIC/EXOTHERMIC b) provide the correct chemical names for the given chemical formulas: 1. For the following questions (a c), refer to the reaction below: Fe2O3 (s) + 2 Al (s) Al2O3 (s) + 2 Fe (s) Hrxn = 852 kj/mol a) This reaction is (circle one): ENDOTHERMIC/EXOTHERMIC b) provide the correct

More information

Reactions in Aqueous Solutions

Reactions in Aqueous Solutions Copyright 2004 by houghton Mifflin Company. Reactions in Aqueous Solutions Chapter 7 All rights reserved. 1 7.1 Predicting if a Rxn Will Occur When chemicals are mixed and one of these driving forces can

More information

Chapter 4 Reactions in Aqueous Solution

Chapter 4 Reactions in Aqueous Solution Chapter 4 Reactions in Aqueous Solution Homework Chapter 4 11, 15, 21, 23, 27, 29, 35, 41, 45, 47, 51, 55, 57, 61, 63, 73, 75, 81, 85 1 2 Chapter Objectives Solution To understand the nature of ionic substances

More information

CHEMISTRY Midterm #2 October 26, Pb(NO 3 ) 2 + Na 2 SO 4 PbSO 4 + 2NaNO 3

CHEMISTRY Midterm #2 October 26, Pb(NO 3 ) 2 + Na 2 SO 4 PbSO 4 + 2NaNO 3 CHEMISTRY 123-02 Midterm #2 October 26, 2004 The total number of points in this exam is 100. The total exam time is 50 min. Good luck! PART I: MULTIPLE CHOICE (Each multiple choice question has a 2-point

More information

Reactions in Aqueous Solution

Reactions in Aqueous Solution Reading Assignments: Reactions in Aqueous Solution Chapter 4 Chapter 4 in R. Chang, Chemistry, 9 th Ed., McGraw-Hill, 2006. or previous editions. Or related topics in other textbooks. Consultation outside

More information

Chapter 4: Types of Chemical Reactions and Solution Stoichiometry

Chapter 4: Types of Chemical Reactions and Solution Stoichiometry Chapter 4: Types of Chemical Reactions and Solution Stoichiometry Collision A bag of mostly water - Star Trek - Rareness No mobility Solution is the solution. Water, the Common Solvent A bag of mostly

More information

Double Displacement (Exchange or Metathesis) Reactions Practicum

Double Displacement (Exchange or Metathesis) Reactions Practicum Double Displacement (Exchange or Metathesis) Reactions Practicum Part I: Instructions: Write the molecular, complete ionic and net ionic equations for every one of the following reactions. If a reaction

More information

Chemistry 12 JANUARY Course Code = CH. Student Instructions

Chemistry 12 JANUARY Course Code = CH. Student Instructions MINISTRY USE ONLY MINISTRY USE ONLY Place Personal Education Number (PEN) here. Place Personal Education Number (PEN) here. MINISTRY USE ONLY Chemistry 12 2002 Ministry of Education JANUARY 2002 Course

More information

SOLUBILITY CURVES WORKSHEET

SOLUBILITY CURVES WORKSHEET SOLUBILITY CURVES WORKSHEET 1.) Which compound is least soluble at: (A) 20 o C? (B) 80 o C? 2.) Which substance is the most soluble at: (A) 10 o C? (B) 50 o C? (C) 90 o C? 3.) The solubility of which substance

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

Practice questions for Chapter 4

Practice questions for Chapter 4 Practice questions for Chapter 4 1. An unknown substance dissolves readily in water but not in benzene (a nonpolar solvent). Molecules of what type are present in the substance? A) neither polar nor nonpolar

More information

Chemistry: Lab Ions in Aqueous Solution

Chemistry: Lab Ions in Aqueous Solution KEY Chemistry: Lab Ions in Aqueous Solution Introduction: Many ionic solids dissolve in water to form clear, aqueous solutions that conduct electricity. It is the ions that conduct the electric current.

More information

Chem 128, Exam III April 25, 2002

Chem 128, Exam III April 25, 2002 I. (41 points) A. (4 points) Write the equilibrium equation and K sp expression for Co 2 S 3. Pay attention to chemical state designations, charges and stoichiometric coefficients! equilibrium equation:

More information

CHEM 12 Unit 3 Review package (solubility)

CHEM 12 Unit 3 Review package (solubility) CHEM 12 Unit 3 Review package (solubility) 1. Which of the following combinations would form an ionic solid? A. Metalloid - metal B. Metal non-metal C. Metalloid metalloid D. Non-metal non-metal 2. Which

More information

E5 Lewis Acids and Bases: Complexation

E5 Lewis Acids and Bases: Complexation chem.125/126 review E5 W09 Hourly II page 1 /5 E5 Lewis Acids and Bases: Complexation 1. ACIDITY OF CATIONS (Part 1) Cations are Lewis acids and exist as aquo complex ions in aqueous solution. Example:

More information

The solvent is the dissolving agent -- i.e., the most abundant component of the solution

The solvent is the dissolving agent -- i.e., the most abundant component of the solution SOLUTIONS Definitions A solution is a system in which one or more substances are homogeneously mixed or dissolved in another substance homogeneous mixture -- uniform appearance -- similar properties throughout

More information

E5 Lewis Acids and Bases: Complexation

E5 Lewis Acids and Bases: Complexation chem.125/126 review E5 F08 Hourly II page 1 /5 E5 Lewis Acids and Bases: Complexation 1. ACIDITY OF CATIONS (Part 1) Cations are Lewis acids and exist as aquo complex ions in aqueous solution. Example:

More information

insoluble partial very soluble (< 0.1 g/100ml) solubility (> 1 g/100ml) Factors Affecting Solubility in Water

insoluble partial very soluble (< 0.1 g/100ml) solubility (> 1 g/100ml) Factors Affecting Solubility in Water Aqueous Solutions Solubility is a relative term since all solutes will have some solubility in water. Insoluble substances simply have extremely low solubility. The solubility rules are a general set of

More information

EXPERIMENT 7 Precipitation and Complex Formation

EXPERIMENT 7 Precipitation and Complex Formation EXPERIMENT 7 Precipitation and Complex Formation Introduction Precipitation is the formation of a solid in a solution as the result of either a chemical reaction, or supersaturating a solution with a salt

More information

AP Chemistry Unit 3- Homework Problems Gas Laws and Stoichiometry

AP Chemistry Unit 3- Homework Problems Gas Laws and Stoichiometry AP Chemistry Unit 3- Homework Problems Gas Laws and Stoichiometry STP 1. What is standard pressure for each of the following: atm, mm Hg, Torr, kpa, PSI 2. Convert each of the following: a. 700 mm Hg to

More information

Chapter 16. Solubility and Complex Ion Equilibria

Chapter 16. Solubility and Complex Ion Equilibria Chapter 16 Solubility and Complex Ion Equilibria Section 16.1 Solubility Equilibria and the Solubility Product Solubility Equilibria Solubility product (K sp ) equilibrium constant; has only one value

More information

The Copper Cycle. HCl(aq) H + (aq) + Cl (aq) HCl(aq) + H 2 O(l) H 3 O + (aq) + Cl (aq)

The Copper Cycle. HCl(aq) H + (aq) + Cl (aq) HCl(aq) + H 2 O(l) H 3 O + (aq) + Cl (aq) The Copper Cycle Introduction Many aspects of our lives involve chemical reactions from the batteries that power our cars and cell phones to the thousands of processes occurring within our bodies. We cannot

More information

Chemical Reactions. Burlingame High School Chemistry 1

Chemical Reactions. Burlingame High School Chemistry 1 Chemical Reactions 1 Chemical Equations Chemical equations are use to describe: the substances that react, the reactants the substances that are formed, the products the relative amounts of all substances

More information

CHEMpossible. Final Exam Review

CHEMpossible. Final Exam Review CHEMpossible Final Exam Review 1. Given the following pair of reactions and their equilibrium constants: 2NO 2 (g) 2NO (g) + O 2 (g) K c = 15.5 2NO (g) + Cl 2 (g) 2 NOCl (g) K c = 3.20 10-3 Calculate a

More information

NCEA Chemistry 2.2 Identify Ions AS 91162

NCEA Chemistry 2.2 Identify Ions AS 91162 NCEA Chemistry 2.2 Identify Ions AS 91162 What is this NCEA Achievement Standard? When a student achieves a standard, they gain a number of credits. Students must achieve a certain number of credits to

More information

4. [7 points] Which of the following reagents would decrease the solubility of AgCl(s)? NaOH HCl NH 3 NaCN

4. [7 points] Which of the following reagents would decrease the solubility of AgCl(s)? NaOH HCl NH 3 NaCN 1. [7 points] It takes 0.098 g of silver iodate, AgIO 3, to make 1.00-L of a saturated solution saturated at 25 C. What is the value of the solubility product, K sp? a. 3.5 10 4 b. 1.2 10 7 c. 9.8 10 2

More information

1.7 REDOX. Convert these to ionic and half equations and you can see clearly how the electrons are transferred:

1.7 REDOX. Convert these to ionic and half equations and you can see clearly how the electrons are transferred: 1.7 REDOX Oxidation and Reduction: Oxidation and reduction reactions can be identified by looking at the reaction in terms of electron transfer: Our understanding of oxidation and reduction was limited

More information

Chemistry 125/126, Exam 1 Tuesday, March 16, For use by grader Page Points Score

Chemistry 125/126, Exam 1 Tuesday, March 16, For use by grader Page Points Score Name: page 1/10 Chemistry 125/126, Exam 1 Tuesday, March 16, 2010 Welcome to the first hourly exam for Chemistry 125/126. This exam consists of 6 questions worth a total of 75 points plus a bonus question

More information

CHAPTER Describing Chemical Reactions Reactants Products. New substances produced The arrow means yields TYPES OF EQUATIONS.

CHAPTER Describing Chemical Reactions Reactants Products. New substances produced The arrow means yields TYPES OF EQUATIONS. CHAPTER 11 Chemical Reactions 11.1 Describing Chemical Reactions Reactants Products New substances produced The arrow means yields Where do Chemical Reactions occur? Everywhere!!! In living organisms In

More information

Concentration Units. Solute CONCENTRATION. Solvent. g L -1. (M, molarity) concentration in. mol / litre of solution. mol L -1. molality. molality.

Concentration Units. Solute CONCENTRATION. Solvent. g L -1. (M, molarity) concentration in. mol / litre of solution. mol L -1. molality. molality. CHAPTER 4 REACTIONS IN AQUEOUS SOLUTION CONCENTRATION Solute Solvent Concentration Units mass NaCl / unit volume of solution g L -1 (M, molarity) concentration in moles per litre of solution c NaCl c B

More information

Name. Practice Test 2 Chemistry 111

Name. Practice Test 2 Chemistry 111 Name Practice Test 2 Chemistry 111 1) In the aqueous reaction of K 2 SO 4 (aq) + Ba(NO 3 ) 2 (aq) BaSO 4 (s) + 2KNO 3 (aq), which ions are the spectator ions? A) Ba 2+ 2- and SO 4 B) Ba 2+ and K + C) Ba

More information

Chemical Reactions REDOX

Chemical Reactions REDOX Chemical Reactions REDOX There are two types of Chemical Changes: 1. Reactions in which ions are being rearranged with no change in their oxidation states. METATHESIS. Reactions in which electrons are

More information

Ch. 8 Notes ~ CHEMICAL REACTIONS NOTE: Vocabulary terms are in boldface and underlined. Supporting details are in italics.

Ch. 8 Notes ~ CHEMICAL REACTIONS NOTE: Vocabulary terms are in boldface and underlined. Supporting details are in italics. Ch. 8 Notes ~ CHEMICAL REACTIONS NOTE: Vocabulary terms are in boldface and underlined. Supporting details are in italics. I. Chemical Reactions (rxns.) A. chemical reaction an expression showing the conversion

More information

A general statement governing all systems in a state of dynamic equilibrium follows:

A general statement governing all systems in a state of dynamic equilibrium follows: Chapter 20 Experiment: LeChâtelier s Principle: Buffers OBJECTIVES: Study the effects of concentration and temperature changes on the position of equilibrium in a chemical system. Study the effect of strong

More information

3 A (aq) + 2 D (aq) 4 C (g) + B (s) + 2 E (l)

3 A (aq) + 2 D (aq) 4 C (g) + B (s) + 2 E (l) AP Chemistry Test (Chapter 13) Multiple Choice (20%) 1) Which one best describes the K C for this reaction? 3 A (aq) + 2 D (aq) 4 C (g) + B (s) + 2 E (l) A) K c = [A] 3 [D] 2 B) K c = [C] 4 [B][E] 2 [C]

More information

Chapter 4. Properties of Aqueous Solutions. Electrolytes in Aqueous Solutions. Strong, weak, or nonelectrolyte. Electrolytic Properties

Chapter 4. Properties of Aqueous Solutions. Electrolytes in Aqueous Solutions. Strong, weak, or nonelectrolyte. Electrolytic Properties Chapter 4 Reactions in Aqueous Solution Observing and Predicting Reactions How do we know whether a reaction occurs? What observations indicate a reaction has occurred? In your groups, make a list of changes

More information

QUALITATIVE ANALYSIS OF GROUP I CATIONS

QUALITATIVE ANALYSIS OF GROUP I CATIONS QUALITATIVE ANALYSIS OF GROUP I CATIONS In previous labs you have determined the amount of an unknown species present, such as percent chloride, identification of an unknown copper, and the molarity of

More information

1) What is the volume of a tank that can hold Kg of methanol whose density is 0.788g/cm 3?

1) What is the volume of a tank that can hold Kg of methanol whose density is 0.788g/cm 3? 1) Convert the following 1) 125 g to Kg 6) 26.9 dm 3 to cm 3 11) 1.8µL to cm 3 16) 4.8 lb to Kg 21) 23 F to K 2) 21.3 Km to cm 7) 18.2 ml to cm 3 12) 2.45 L to µm 3 17) 1.2 m to inches 22) 180 ºC to K

More information

Chapter 4 Reactions in Aqueous Solutions. Copyright McGraw-Hill

Chapter 4 Reactions in Aqueous Solutions. Copyright McGraw-Hill Chapter 4 Reactions in Aqueous Solutions Copyright McGraw-Hill 2009 1 4.1 General Properties of Aqueous Solutions Solution - a homogeneous mixture Solute: the component that is dissolved Solvent: the component

More information

Solubility Rules See also Table 4.1 in text and Appendix G in Lab Manual

Solubility Rules See also Table 4.1 in text and Appendix G in Lab Manual Ch 4 Chemical Reactions Ionic Theory of Solutions - Ionic substances produce freely moving ions when dissolved in water, and the ions carry electric current. (S. Arrhenius, 1884) - An electrolyte is a

More information

Unit 8 Redox 8-1. At the end of this unit, you ll be able to

Unit 8 Redox 8-1. At the end of this unit, you ll be able to 8-1 Unit 8 Redox At the end of this unit, you ll be able to Define and identify oxidation reactions Define and identify reduction reactions Assign oxidation numbers to elements in a compound Write and

More information

From Writing Formulas to Balancing Equations A Tutorial

From Writing Formulas to Balancing Equations A Tutorial Chemistry Revised 2013 Name From Writing Formulas to Balancing Equations A Tutorial Period Oxidation Numbers. The Oxidation numbers written as s _ tell whether an element or group of elements lost or gained

More information

EXPERIMENT Identification of Unknown Solutions

EXPERIMENT Identification of Unknown Solutions EXPERIMENT Identification of Unknown Solutions PURPOSE As you work through this exercise you will learn how to: Make careful observations of chemical reactions. Develop logical testing procedures for performing

More information

Unit 8: Redox and Electrochemistry

Unit 8: Redox and Electrochemistry May 20, 2014 Unit 8: Redox and Electrochemistry http://www.firefly.org/firefly-pictures.html Oxidation Number numbers assigned to atoms that allow us to keep track of electrons. Rule #1: Oxidation number

More information

Name: Grading key Page 1/9. For use by grader Page Points Score

Name: Grading key Page 1/9. For use by grader Page Points Score Name: Grading key Page 1/9 Chemistry 125/126, Exam 2 Tuesday, April 20, 2010 Welcome to the first hourly exam for Chemistry 125/126. This exam consists of 7 questions worth a total of 75 points plus a

More information

Chem 1B Saddleback College Dr. White 1. Experiment 5: Separation and Identification of Group I Cations (The Chloride Group: Ag +, Pb 2+, and Hg 2

Chem 1B Saddleback College Dr. White 1. Experiment 5: Separation and Identification of Group I Cations (The Chloride Group: Ag +, Pb 2+, and Hg 2 Chem 1B Saddleback College Dr. White 1 Experiment 5: Separation and Identification of Group I Cations (The Chloride Group: Ag +, Pb 2+, and Hg 2 2+) Objective To understand the chemical reactions involved

More information

Oxidation-Reduction Reactions. (Redox) Redox Reactions. Types of Redox Rxn s. Not Redox Reactions. Combustion of methane

Oxidation-Reduction Reactions. (Redox) Redox Reactions. Types of Redox Rxn s. Not Redox Reactions. Combustion of methane Oxidation-Reduction Reactions Redox Reactions Reactions in which one or more electrons are transferred 2Na (s) + Cl 2(g) 2NaCl (s) (Redox) Species loosing electrons is said to be oxidized and the species

More information

Exercise 4 Oxidation-reduction (redox) reaction oxidimetry. Theoretical part

Exercise 4 Oxidation-reduction (redox) reaction oxidimetry. Theoretical part Exercise 4 Oxidation-reduction (redox) reaction oxidimetry. Theoretical part In oxidation-reduction (or redox) reactions, the key chemical event is the net movement of electrons from one reactant to the

More information

General Chemistry Multiple Choice Questions Chapter 8

General Chemistry Multiple Choice Questions Chapter 8 1 Write the skeleton chemical equation for the following word equation: Hydrochloric acid plus magnesium yields magnesium chloride and hydrogen gas. a HClO 4 + Mg --> MgClO 4 + H 2 b HClO 4 + Mg --> MgClO

More information

Honors text: Ch 10 & 12 Unit 06 Notes: Balancing Chemical Equations

Honors text: Ch 10 & 12 Unit 06 Notes: Balancing Chemical Equations Notes: Balancing Chemical Equations Effects of chemical reactions: Chemical reactions rearrange atoms in the reactants to form new products. The identities and properties of the products are completely

More information

Brass, a solid solution of Zn and Cu, is used to make musical instruments and many other objects.

Brass, a solid solution of Zn and Cu, is used to make musical instruments and many other objects. Brass, a solid solution of Zn and Cu, is used to make musical instruments and many other objects. 14.1 General Properties of Solutions 14.2 Solubility 14.3 Rate of Dissolving Solids 14.4 Concentration

More information

Experiment 6. Investigating Chemical Reactions

Experiment 6. Investigating Chemical Reactions In this experiment you will: Experiment 6. Investigating Chemical Reactions Perform and observe the results of a variety of chemical reactions. Become familiar with the observable signs of chemical reactions.

More information

3. Liquid solutions: a. liquid - liquid Ex. vinegar b. solid - liquid Ex. salt water c. gas - liquid Ex. carbonated water in soda pop

3. Liquid solutions: a. liquid - liquid Ex. vinegar b. solid - liquid Ex. salt water c. gas - liquid Ex. carbonated water in soda pop Solution Chemistry Nature of Solutions solutions are homogeneous mixtures substances in solution are different from their solid, liquid or gas forms there should be no observable segregation of component

More information

Chemical Equilibria: Coordination Compounds

Chemical Equilibria: Coordination Compounds E11 Chemical Equilibria: Coordination Compounds Objective Ø Illustrate the tendency of metal ions to form metal coordination complexes with ions and neutral polar molecules that act as electron-pair donors

More information

Chapter 4. Reactions In Aqueous Solution

Chapter 4. Reactions In Aqueous Solution Chapter 4 Reactions In Aqueous Solution I) General Properties of Aqueous Solutions Homogeneous mixture on a molecular level - prop. same throughout - separable by physical means - variable composition

More information

CHM 1045-All Sections Exam 2 Practice Fall Unit 2 Stoichiometry, Aqueous Solutions, & Thermo Chapters 3-6

CHM 1045-All Sections Exam 2 Practice Fall Unit 2 Stoichiometry, Aqueous Solutions, & Thermo Chapters 3-6 CHM 1045-All Sections Exam 2 Practice Fall 2013 Unit 2 Stoichiometry, Aqueous Solutions, & Thermo Chapters 3-6 ======================================================================= 1. Calculate the concentration

More information

Chemistry 12 APRIL Course Code = CH. Student Instructions

Chemistry 12 APRIL Course Code = CH. Student Instructions MINISTRY USE ONLY MINISTRY USE ONLY Place Personal Education Number (PEN) here. Place Personal Education Number (PEN) here. MINISTRY USE ONLY Chemistry 12 2002 Ministry of Education APRIL 2002 Course Code

More information

Chemistry 112 Name Exam III Form A Section April 2,

Chemistry 112 Name Exam III Form A Section April 2, Chemistry 112 Name Exam III Form A Section April 2, 2013 email IMPORTANT: On the scantron (answer sheet), you MUST clearly fill your name, your student number, section number, and test form (white cover

More information

Chapter 3 & 4: Stoichiometry part 2

Chapter 3 & 4: Stoichiometry part 2 Chapter 3 & 4: Stoichiometry part 2 Read: BLB 4.6 & 10.5 HW: BLB 4:81a,b, 83, 87; 10:26, 55, 57 18:26, 61 Supplemental: Rxns 12 18 Know: Solution Stoichiometry and Titrations (Ch. 4) Gas phase Reactions

More information

Chapter 7: Chemical Reactions

Chapter 7: Chemical Reactions C h a p t e r 7, C h a p t e r 1 6 ( 2-5 ) : C h e m i c a l R e a c t i o n s P a g e 1 Chapter 7: Chemical Reactions Read Chapter 7 and Check MasteringChemistry due dates. Evidence of Chemical Reactions:

More information

A complex ion is a polyatomic cation or anion composed of a central metal ion to which ligands are bonded.

A complex ion is a polyatomic cation or anion composed of a central metal ion to which ligands are bonded. Equilibria Involving Complex Ions Complex Ion Equilibria and Solubility A complex ion is a polyatomic cation or anion composed of a central metal ion to which ligands are bonded. Coordination compounds

More information

CHEM 107 (Spring-2004) Exam 2 (100 pts)

CHEM 107 (Spring-2004) Exam 2 (100 pts) CHEM 107 (Spring-2004) Exam 2 (100 pts) Name: ------------------------------------------------------------------------, SSN -------------------------------- LAST NAME, First (Circle the alphabet segment

More information

Solubility & Net Ionic review

Solubility & Net Ionic review Solubility & Net Ionic review Multiple Choice Identify the choice that best completes the statement or answers the question. 1. Which of the following statements is/are correct? 1. All ionic compounds

More information

Chapter 4. Reactions in Aqueous Solution

Chapter 4. Reactions in Aqueous Solution Chapter 4. Reactions in Aqueous Solution 4.1 General Properties of Aqueous Solutions A solution is a homogeneous mixture of two or more substances. A solution is made when one substance (the solute) is

More information

Qualitative Analysis Worksheet

Qualitative Analysis Worksheet Qualitative Analysis Worksheet As you work through the steps in the lab procedures, record your experimental values and the results on this worksheet. Complete the following table with your results from

More information

Chemistry Stoichiometry and Heat Exam (ver.1) Mr. Thaler. Please do not write on this exam. Mark your answers on the scantron only.

Chemistry Stoichiometry and Heat Exam (ver.1) Mr. Thaler. Please do not write on this exam. Mark your answers on the scantron only. 1. Identify from the unbalanced equations below the one that does not represent a redox reaction. a. H 2O 2(aq) + MnO 4 - (aq) O 2(g) + Mn 2+ (aq) b. H 2(g) + N 2(g) NH 3(g) c. NaCl (aq) + AgNO 3(aq) NaNO

More information

(2). Cu(NO 3 ) HCl CuCl HNO 3 all products soluble, no ppt

(2). Cu(NO 3 ) HCl CuCl HNO 3 all products soluble, no ppt CHEM 112 Solubility and Precipitation Rexn 25.0mL 0.010M HCl 25.0mL 0.10M NaOH 50.0mL 0.0010M 25.0mL 0.050M 50.0mL 0.0010M AgNO Fe(NO ) Cu(NO ) 2 (1). Fe(NO ) + HCl FeCl + HNO all products soluble, no

More information

11-1 Notes. Chemical Reactions

11-1 Notes. Chemical Reactions 11-1 Notes Chemical Reactions Chemical Reactions In a chemical reaction 1 or more substances (the reactants) change into 1 or more new substances (the products). Reactants are always written on the left

More information

Qualitative Chemical Analysis

Qualitative Chemical Analysis Qualitative Chemical Analysis István Szalai Institute of Chemistry, Eötvös University 2018 István Szalai (Institute of Chemistry, Eötvös University) Qualitative Chemical Analysis 2018 1 / 1 Topics Acid-base

More information

Chapter 4. Reactions in Aqueous Solution

Chapter 4. Reactions in Aqueous Solution Chapter 4 Reactions in Aqueous Solution Topics General properties of aqueous solutions Precipitation reactions Acid base reactions Oxidation reduction reactions Concentration of solutions Aqueous reactions

More information

Chapter 15 - Applications of Aqueous Equilibria

Chapter 15 - Applications of Aqueous Equilibria Neutralization: Strong Acid-Strong Base Chapter 15 - Applications of Aqueous Equilibria Molecular: HCl(aq) + NaOH(aq) NaCl(aq) + H 2 O(l) SA-SB rxn goes to completion (one-way ) Write ionic and net ionic

More information

Solubility Guidelines for Compounds in Aqueous Solutions

Solubility Guidelines for Compounds in Aqueous Solutions Solubility Guidelines for Compounds in Aqueous Solutions It is very important that you know these guidelines and how to apply them in reactions. 1) Common inorganic acids and low-molecularweight organic

More information

CHEMICAL REACTIONS IN SOLUTION AND NET IONIC EQUATIONS

CHEMICAL REACTIONS IN SOLUTION AND NET IONIC EQUATIONS CHEMICAL REACTIONS IN SOLUTION AND NET IONIC EQUATIONS Chemical reactions that occur in solution fall into two broad categories: Oxidation-reduction reactions: reactions in which ion charges change Metathesis

More information

[base] [acid] ph = pka + log

[base] [acid] ph = pka + log Fall 2013 CCBC-Catonsville (Wed 10/30/13) Use your time wisely. Do not get stuck on one question. NO CREDIT WILL BE GIVEN UNLESS WORK IS SHOWN CLEARLY. UNITS MUST BE INCLUDED IN YOUR SETUPS. Answers must

More information

Chm 116 (Sp 2004) - Review of Chm 115

Chm 116 (Sp 2004) - Review of Chm 115 Chm 116 (Sp 2004) Review of Chm 115 Conversions within the SI system Examples (with Answers): 1. Convert 1.29 x 10 +5 mg into the following units: kilograms, grams, micrograms, and nanograms. In order

More information

Date: Names: Section: To investigate various chemical equilibria and explain them using Le Chatelier s Principle. Equilibrium I

Date: Names: Section: To investigate various chemical equilibria and explain them using Le Chatelier s Principle. Equilibrium I Chem 1105 EQUILIBRIUM Date: Names: Section: OBJECTIVE: PROCEDURE: To investigate various chemical equilibria and explain them using Le Chatelier s Principle. As in Chem. 1105 lab manual, pp. Equilibrium

More information

Chem 110 General Principles of Chemistry

Chem 110 General Principles of Chemistry Chem 110 General Principles of Chemistry Chapter 3 (Page 88) Aqueous Reactions and Solution Stoichiometry In this chapter you will study chemical reactions that take place between substances that are dissolved

More information

AP* Chapter 16. Solubility and Complex Ion Equilibria

AP* Chapter 16. Solubility and Complex Ion Equilibria AP* Chapter 16 Solubility and Complex Ion Equilibria AP Learning Objectives LO 6.1 The student is able to, given a set of experimental observations regarding physical, chemical, biological, or environmental

More information

EXAM 3 CHEM 1310 WS09 Key Version #2

EXAM 3 CHEM 1310 WS09 Key Version #2 EXAM 3 CHEM 1310 WS09 Key Version #2 1. (p. 116) Select the correct name and chemical formula for the precipitate that forms when the following reactants are mixed. CuCl 2 (aq) + Na 2 CO 3 (aq) A. copper(ii)

More information

Unit 3: Solubility Equilibrium

Unit 3: Solubility Equilibrium Unit 3: Chem 11 Review Preparation for Chem 11 Review Preparation for It is expected that the student understands the concept of: 1. Strong electrolytes, 2. Weak electrolytes and 3. Nonelectrolytes. CHEM

More information

October 19, 1999 Page 1. Chapter 4 Practice Worksheet Dr. Palmer Graves, Instructor MULTIPLE CHOICE

October 19, 1999 Page 1. Chapter 4 Practice Worksheet Dr. Palmer Graves, Instructor MULTIPLE CHOICE October 19, 1999 Page 1 MULTIPLE CHOICE Section 4.1 Some Ways that Chemical Reactions Occur 1. The reaction of HNO (aq) + KOH(aq) KNO (aq) + H O(l) is best classified as a(n) a) acid-base neutralization

More information

9.1 Water. Chapter 9 Solutions. Water. Water in Foods

9.1 Water. Chapter 9 Solutions. Water. Water in Foods Chapter 9 s 9.1 Water 9.1 Properties of Water 9.2 s 9.3 Electrolytes and Nonelectrolytes 9.6 Percent Concentration 9.7 Molarity Water is the most common solvent. The water molecule is polar. Hydrogen bonds

More information

Chemistry I-H Types of Reactions / Reaction Prediction / Reaction Theory

Chemistry I-H Types of Reactions / Reaction Prediction / Reaction Theory Chemistry I-H Types of Reactions / Reaction Prediction / Reaction Theory I. Synthesis (combination) A + B ---------> AB Substances that are chemically combined may be two elements or two compounds. If

More information

Unit 3: Solubility Equilibrium

Unit 3: Solubility Equilibrium Unit 3: Chem 11 Review Preparation for Chem 11 Review Preparation for It is expected that the student understands the concept of: 1. Strong electrolytes, 2. Weak electrolytes and 3. Nonelectrolytes. CHEM

More information

11/3/09. Aqueous Solubility of Compounds. Aqueous Solubility of Ionic Compounds. Aqueous Solubility of Ionic Compounds

11/3/09. Aqueous Solubility of Compounds. Aqueous Solubility of Ionic Compounds. Aqueous Solubility of Ionic Compounds Aqueous Solubility of Compounds Not all compounds dissolve in water. Solubility varies from compound to compound. Chapter 5: Chemical Reactions Soluble ionic compounds dissociate. Ions are solvated Most

More information

Name Student ID Number Lab TA Name and Time

Name Student ID Number Lab TA Name and Time Name Student ID Number Lab TA Name and Time CHEMISTRY 2A Exam I Fall 2012 - Enderle Instructions: CLOSED BOOK EXAM! No books, notes, or additional scrap paper are permitted. All information required is

More information

Fall 2011 CHEM Test 4, Form A

Fall 2011 CHEM Test 4, Form A Fall 2011 CHEM 1110.40413 Test 4, Form A Part I. Multiple Choice: Clearly circle the best answer. (60 pts) Name: 1. The common constituent in all acid solutions is A) H 2 SO 4 B) H 2 C) H + D) OH 2. Which

More information

CHM 152 Exam 4 Review Ch KEY

CHM 152 Exam 4 Review Ch KEY CHM 152 Exam 4 Review Ch. 18 19 KEY 1. Predict whether the entropy change will be positive or negative for the following: a. H 2 O (g) H 2 O (l) S - b. C 6 H 12 O 6 (s) 2C 2 H 5 OH(l) + 2CO 2 (g) S +_

More information