Question 1

What are the respective concentrations (M) of Fe3+ and I- afforded by dissolving 0.200 mol FeI3 in water and diluting to 725 mL?

Accepted Answer

A)  0.276 and 0.276 
B)  0.276 and 0.828 
C)  0.145 and 0.0483 
D)  0.828 and 0.276 
E)  0.145 and 0.435 
A)  0.276 and 0.276 
B)  0.276 and 0.828 
C)  0.145 and 0.0483 
D)  0.828 and 0.276 
E)  0.145 and 0.435

Question 2

Based on the activity series, which one of the reactions below will occur?

Accepted Answer

A)  3Hg (l) + 2Cr(NO3)3 (aq) - 3Hg(NO3)2 + 2Cr (s) 
B)  Zn (s) + MnI2 (aq) - ZnI2 (aq) + Mn (s) 
C)  SnCl2 (aq) + Cu (s) - Sn (s) + CuCl2 (aq) 
D)  3FeBr2 (aq) + 2Au (s) - 3Fe (s) + 2AuBr3 (aq) 
E)  2AgNO3 (aq) + Pb (s) - 2Ag (s) + Pb(NO3)2 (aq) 
A)  3Hg (l) + 2Cr(NO3)3 (aq) - 3Hg(NO3)2 + 2Cr (s) 
B)  Zn (s) + MnI2 (aq) - ZnI2 (aq) + Mn (s) 
C)  SnCl2 (aq) + Cu (s) - Sn (s) + CuCl2 (aq) 
D)  3FeBr2 (aq) + 2Au (s) - 3Fe (s) + 2AuBr3 (aq) 
E)  2AgNO3 (aq) + Pb (s) - 2Ag (s) + Pb(NO3)2 (aq)

Question 3

A solution is prepared by adding 1.60 g of solid NaCl to 50.0 mL of 0.100 M CaCl2. What is the molarity of chloride ion in the final solution? Assume that the volume of the final solution is 50.0 mL.

Accepted Answer

A)  0.547 
B)  0.132 
C)  0.232 
D)  0.747 
E)  0.647 
A)  0.547 
B)  0.132 
C)  0.232 
D)  0.747 
E)  0.647

Question 4

Which of the following are strong electrolytes? 
HCl
HC2H3O2 
NH3
KCl

Accepted Answer

A)  HCl, NH3, KCl 
B)  HCl, HC2H3O2, NH3, KCl 
C)  HC2H3O2, KCl 
D)  HCl, HC2H3O2, KCl 
E)  HCl, KCl 
A)  HCl, NH3, KCl 
B)  HCl, HC2H3O2, NH3, KCl 
C)  HC2H3O2, KCl 
D)  HCl, HC2H3O2, KCl 
E)  HCl, KCl

Question 5

Which solution has the same number of moles of solute A as 50.00 mL of 0.100M solution of NaOH?

Accepted Answer

A)  25.00 mL of 0.175M solution of A 
B)  100.00 mL of 0.0500M solution of A 
C)  30.00 mL of 0.145M solution of A 
D)  20.00 mL of 0.200M solution of A 
E)  50.00 mL of 0.125M solution of A 
A)  25.00 mL of 0.175M solution of A 
B)  100.00 mL of 0.0500M solution of A 
C)  30.00 mL of 0.145M solution of A 
D)  20.00 mL of 0.200M solution of A 
E)  50.00 mL of 0.125M solution of A

Question 6

Of the species below, only is NOT an electrolyte.

Accepted Answer

A)  Rb2SO4  
B)  NaCl 
C)  KOH 
D)  HCl 
E)  Ar 
A)  Rb2SO4  
B)  NaCl 
C)  KOH 
D)  HCl 
E)  Ar

Question 7

The balanced molecular equation for complete neutralization of H2SO4 by KOH in aqueous solution is _ .

Accepted Answer

A)  H2SO4 (aq) + 2KOH (aq) - 2H2O (l) + K2SO4 (aq) 
B)  2H+ (aq) + 2KOH (aq) - 2H2O (l) + 2K+ (aq) 
C)  H2SO4 (aq) + 2OH- (aq) - 2H2O (l) + SO42- (aq) 
D)  2H+ (aq) + 2OH- (aq) - 2H2O (l) 
E)  H2SO4 (aq) + 2KOH (aq) - 2H2O (l) + K2SO4 (s) 
A)  H2SO4 (aq) + 2KOH (aq) - 2H2O (l) + K2SO4 (aq) 
B)  2H+ (aq) + 2KOH (aq) - 2H2O (l) + 2K+ (aq) 
C)  H2SO4 (aq) + 2OH- (aq) - 2H2O (l) + SO42- (aq) 
D)  2H+ (aq) + 2OH- (aq) - 2H2O (l) 
E)  H2SO4 (aq) + 2KOH (aq) - 2H2O (l) + K2SO4 (s)

Question 8

The point in a titration at which the indicator changes is called the .

Accepted Answer

A)  endpoint 
B)  equivalence point 
C)  indicator point 
D)  standard point 
E)  volumetric point 
A)  endpoint 
B)  equivalence point 
C)  indicator point 
D)  standard point 
E)  volumetric point

Question 9

Which one of the following is a correct expression for molarity?

Accepted Answer

A)  mol solute/mL solvent 
B)  µmol solute/L solution 
C)  mol solute/kg solvent 
D)  mmol solute/mL solution 
E)  mol solute/L solvent 
A)  mol solute/mL solvent 
B)  µmol solute/L solution 
C)  mol solute/kg solvent 
D)  mmol solute/mL solution 
E)  mol solute/L solvent

Question 10

When gold dissolves in aqua regia, what is reduced

Accepted Answer

A)  NO3-  
B)  H+  
C)  Au 
D)  Cl-  
E)  H2O 
A)  NO3-  
B)  H+  
C)  Au 
D)  Cl-  
E)  H2O

Question 11

In a titration of 35.00 mL of 0.737 M H2SO4, mL of a 0.827 M KOH solution is required for neutralization.

Accepted Answer

A)  1.12 
B)  62.4 
C)  35.0 
D)  39.3 
E)  25.8 
A)  1.12 
B)  62.4 
C)  35.0 
D)  39.3 
E)  25.8

Question 12

The net ionic equation for the reaction between aqueous solutions of HF and KOH is .

Accepted Answer

A)  HF + KOH -H2O + K+  + F- 
B)  H+  + F-  + K+  + OH-  -H2O + K+  + F- 
C)  HF + OH-  -H2O + F- 
D)  H+ + OH- - H2O 
E)  HF + K+  + OH-  -H2O + KF 
A)  HF + KOH -H2O + K+  + F- 
B)  H+  + F-  + K+  + OH-  -H2O + K+  + F- 
C)  HF + OH-  -H2O + F- 
D)  H+ + OH- - H2O 
E)  HF + K+  + OH-  -H2O + KF

Question 13

How many grams of CH3OH must be added to water to prepare 150 mL of a solution that is 2.0 M CH3OH?

Accepted Answer

A)  4.3 
B)  2.4 
C)  9.6 × 103  
D)  4.3 × 102  
E)  9.6 
A)  4.3 
B)  2.4 
C)  9.6 × 103  
D)  4.3 × 102  
E)  9.6

Question 14

How many moles of K+ are present in 343 mL of a 1.27 M solution of K3PO4?

Accepted Answer

A)  3.70 
B)  0.145 
C)  1.31 
D)  11.1 
E)  0.436 
A)  3.70 
B)  0.145 
C)  1.31 
D)  11.1 
E)  0.436

Question 15

Oxalic acid is a diprotic acid. Calculate the percent of oxalic acid (H2C2O4) in a solid given that a 0.7984 g sample of that solid required 37.98 mL of 0.2283 M NaOH for neutralization.

Accepted Answer

A)  1.086 
B)  48.89 
C)  28.59 
D)  97.78 
E)  22.83 
A)  1.086 
B)  48.89 
C)  28.59 
D)  97.78 
E)  22.83

Question 16

The molarity (M) of an aqueous solution containing 22.5 g of glucose (C6H12O6) in 35.5 mL of solution is _ .

Accepted Answer

A)  0.634 
B)  1.85 
C)  0.197 
D)  0.125 
E)  3.52 
A)  0.634 
B)  1.85 
C)  0.197 
D)  0.125 
E)  3.52

Question 17

Which one of the following substances is produced during the reaction of an acid with a metal hydroxide?

Accepted Answer

A)  O2  
B)  H2  
C)  H2O 
D)  NaOH 
E)  CO2 
A)  O2  
B)  H2  
C)  H2O 
D)  NaOH 
E)  CO2

Question 18

The compound HClO4 is a weak acid.

Accepted Answer

A) True 
 B)False

Question 19

A 0.100 M solution of will contain the highest concentration of potassium ions.

Accepted Answer

A)  potassium phosphate 
B)  potassium iodide 
C)  potassium hypochlorite 
D)  potassium hydrogen carbonate 
E)  potassium oxide 
A)  potassium phosphate 
B)  potassium iodide 
C)  potassium hypochlorite 
D)  potassium hydrogen carbonate 
E)  potassium oxide

Question 20

Which of these metals is the least easily oxidized?
Na Au Fe Ca Ag

Accepted Answer

A)  Au 
B)  Na 
C)  Ag 
D)  Ca 
E)  Fe 
A)  Au 
B)  Na 
C)  Ag 
D)  Ca 
E)  Fe

Exam 4: Aqueous Reactions and Solution Stoichiometry

What are the respective concentrations (M) of Fe3+ and I- afforded by dissolving 0.200 mol FeI3 in water and diluting to 725 mL?

Based on the activity series, which one of the reactions below will occur?

A solution is prepared by adding 1.60 g of solid NaCl to 50.0 mL of 0.100 M CaCl2. What is the molarity of chloride ion in the final solution? Assume that the volume of the final solution is 50.0 mL.

Which of the following are strong electrolytes? HCl HC2H3O2 NH3 KCl

Which solution has the same number of moles of solute A as 50.00 mL of 0.100M solution of NaOH?

Of the species below, only is NOT an electrolyte.

The balanced molecular equation for complete neutralization of H2SO4 by KOH in aqueous solution is _ .

The point in a titration at which the indicator changes is called the .

Which one of the following is a correct expression for molarity?

When gold dissolves in aqua regia, what is reduced

In a titration of 35.00 mL of 0.737 M H2SO4, mL of a 0.827 M KOH solution is required for neutralization.

The net ionic equation for the reaction between aqueous solutions of HF and KOH is .

How many grams of CH3OH must be added to water to prepare 150 mL of a solution that is 2.0 M CH3OH?

How many moles of K+ are present in 343 mL of a 1.27 M solution of K3PO4?

Oxalic acid is a diprotic acid. Calculate the percent of oxalic acid (H2C2O4) in a solid given that a 0.7984 g sample of that solid required 37.98 mL of 0.2283 M NaOH for neutralization.

The molarity (M) of an aqueous solution containing 22.5 g of glucose (C6H12O6) in 35.5 mL of solution is _ .

Which one of the following substances is produced during the reaction of an acid with a metal hydroxide?

The compound HClO4 is a weak acid.

A 0.100 M solution of will contain the highest concentration of potassium ions.

Which of these metals is the least easily oxidized? Na Au Fe Ca Ag

Introduction: Matter and Measurement

Atoms, Molecules, and Ions

Stoichiometry: Calculations With Chemical Formulas and Equations

Electronic Structure of Atoms

Periodic Properties of the Elements

Basic Concepts of Chemical Bonding

Gases

Intermolecular Forces, Liquids, and Solids

Modern Materials

Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acid-Base Equilibria

Additional Aspects of Equilibria

Chemistry of the Environment

Chemical Thermodynamics

Electrochemistry

Nuclear Chemistry

Chemistry of the Nonmetals

Metals and Metallurgy

Chemistry of Coordination Compounds

The Chemistry of Life: Organic and Biological Chemistry

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What are the respective concentrations (M) of Fe³⁺and I^-afforded by dissolving 0.200 mol FeI₃in water and diluting to 725 mL?

A solution is prepared by adding 1.60 g of solid NaCl to 50.0 mL of 0.100 M CaCl₂. What is the molarity of chloride ion in the final solution? Assume that the volume of the final solution is 50.0 mL.

Which of the following are strong electrolytes? HCl HC₂H₃O₂ NH₃ KCl

The balanced molecular equation for complete neutralization of H₂SO₄by KOH in aqueous solution is _ .

In a titration of 35.00 mL of 0.737 M H₂SO₄, mL of a 0.827 M KOH solution is required for neutralization.

How many grams of CH₃OH must be added to water to prepare 150 mL of a solution that is 2.0 M CH₃OH?

How many moles of K⁺are present in 343 mL of a 1.27 M solution of K₃PO₄?

Oxalic acid is a diprotic acid. Calculate the percent of oxalic acid (H₂C₂O₄) in a solid given that a 0.7984 g sample of that solid required 37.98 mL of 0.2283 M NaOH for neutralization.

The molarity (M) of an aqueous solution containing 22.5 g of glucose (C₆H₁₂O₆) in 35.5 mL of solution is _ .

The compound HClO₄is a weak acid.