Question 1

Describe the procedure used to make 3.0 liters of a 2.0 M KCl solution, starting with solid KCl and water.

Accepted Answer

Determine the molar mass of KC...

Question 2

Batteries in our cars generate electricity by the following chemical reaction.
Pb + PbO2 + 2H2SO4 $\rarr$ 2PbSO4 + 2H2O
What is the oxidizing agent in this process?

Accepted Answer

Question 3

The solubility of Ba(NO3)2 is 130.5 grams per liter at 0°C. How many moles of dissolved salt are present in 4.0 liters of a saturated solution of Ba(NO3)2 at 0ºC?

Accepted Answer

Question 4

Batteries in our cars generate electricity by the following chemical reaction.
Pb + PbO2 + 2H2SO4 $\rarr$ 2PbSO4 + 2H2O
Which substance is oxidized in this process?

Accepted Answer

Question 5

Which of the following compounds is a nonelectrolyte?

Accepted Answer

A)  NaOH
B)  HNO3
C)  C2H6O (ethanol) 
D)  KF
E)  CH3COOH (acetic acid) F) B) and C)
G) A) and D)

Question 6

Calcium nitrate tetrahydrate dissolves in cold water to the extent of 266 g per 100.cm3. What is the concentration of nitrate ions in this solution?

Accepted Answer

A)  32.4M
B)  22.5M
C)  11.3M
D)  16.2M
E)  8.10MF) A) and E)
G) B) and C)

Question 7

Based on the solubility rules, which one of the following compounds should be insoluble in water?

Accepted Answer

A)  NaCl
B)  MgBr2
C)  FeCl2
D)  AgBr
E)  ZnCl2F) B) and E)
G) A) and B)

Question 8

In the following chemical reaction the oxidizing agent is 
5H2O2 + 2MnO4- + 6H+  →\rarr→ 2Mn2+ + 8H2O + 5O2

Accepted Answer

A)  H2O2
B)  MnO4-
C)  H+
D)  Mn2+
E)  O2 F) A) and C)
G) A) and B)

Question 9

Sugar dissolves in water, therefore it is a strong electrolyte.

Accepted Answer

A) True 
 B)False

Question 10

Give an example of a diprotic acid.

Accepted Answer

The answer of Give an example of a diprotic acid....

Question 11

Thorium metal is prepared by reacting thorium oxide with calcium.
ThO2 + 2Ca $\rarr$ Th + 2CaO
What is the reducing agent in this process?

Accepted Answer

Question 12

Identify the following compound as an electrolyte or nonelectrolyte: C12H22O11(sucrose).

Accepted Answer

Question 13

Based on the solubility rules, which one of the following should be soluble in water?

Accepted Answer

A)  AgBr
B)  AgCl
C)  Ag2CO3
D)  AgNO3
E)  Ag2SF) All of the above
G) A) and B)

Question 14

Identify the following compounds as a strong electrolytes, weak electrolytes, or nonelectrolytes: KNO3, KNO2, HNO3, HNO2,

Accepted Answer

KNO₃, KNO₂, and HNO₃ ar...

Question 15

What is the chemical formula of the salt produced by the complete neutralization of sodium hydroxide with sulfuric acid?

Accepted Answer

A)  Na2SO4
B)  Na2(SO4) 3
C)  Na(SO4) 2
D)  NaSO3
E)  Na3SO4F) C) and D)
G) All of the above

Question 16

Based on the solubility rules, which one of the following compounds should be insoluble in water?

Accepted Answer

A)  CaCO3
B)  (NH4) 2CO3
C)  Na2CO3
D)  K2CO3
E)  KNO3F) None of the above
G) B) and D)

Question 17

Give an example of a monoprotic acid.

Accepted Answer

The answer of Give an example of a monoprotic acid....

Question 18

When 50.0 mL of a 0.3000 M AgNO3 solution is added to 50.0 mL of a solution of MgCl2, an AgCl precipitate forms immediately. The precipitate is then filtered from the solution, dried, and weighed. If the recovered AgCl is found to have a mass of 0.1183 g, what as the concentration of magnesium ions in the original MgCl2 solution?

Accepted Answer

A)  0.300 M
B)  8.25 * 10-3 M
C)  1.65 * 10-2 M
D)  2.06 * 10-5 M
E)  4.13 * 10-3 MF) B) and E)
G) C) and D)

Question 19

A piece of zinc metal was added to an aqueous solution of lead(II)nitrate.After some time it was observed that the zinc metal had appeared to fall apart and a solid had accumulated at the bottom of the reaction vessel.
Write the balanced chemical equation for this reaction.

Accepted Answer

Zn(s)+ Pb(...

Question 20

Which one of the following is a redox reaction?

Accepted Answer

A)  2Al(s) + 3H2SO4(aq)  →\rarr→  Al2(SO4) 3(aq) + 3H2(g) 
B)  2KBr(aq) + Pb(NO3) 2(aq)  →\rarr→ 2KNO3(aq) + PbBr2(s) 
C)  CaBr2(aq) + H2SO4(aq)  →\rarr→  CaSO4(s) + 2HBr(g) 
D)  H+(aq) + OH- (aq)  →\rarr→ H2O(l) 
E)  CO32- (aq) + HSO4-(aq)  →\rarr→  HCO3- (aq) + SO42- (aq)  F) B) and C)
G) A) and C)

Exam 4: Reactions in Aqueous Solution

Describe the procedure used to make 3.0 liters of a 2.0 M KCl solution, starting with solid KCl and water.

Correct Answer
verified
Determine the molar mass of KC...
View Answer

In the following chemical reaction the oxidizing agent is 5H₂O₂ + 2MnO₄^- + 6H⁺ $\rarr$ 2Mn²⁺ + 8H₂O + 5O₂

Correct Answer
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Based on the solubility rules, which one of the following should be soluble in water?

Correct Answer
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The solubility of Ba(NO₃)₂ is 130.5 grams per liter at 0°C. How many moles of dissolved salt are present in 4.0 liters of a saturated solution of Ba(NO₃)₂ at 0ºC?

Correct Answer
verified

A piece of zinc metal was added to an aqueous solution of lead(II)nitrate.After some time it was observed that the zinc metal had appeared to fall apart and a solid had accumulated at the bottom of the reaction vessel. Write the balanced chemical equation for this reaction.

Correct Answer
verified
Zn(s)+ Pb(...
View Answer

Give an example of a monoprotic acid.

Correct Answer
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Based on the solubility rules, which one of the following compounds should be insoluble in water?

Correct Answer
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Based on the solubility rules, which one of the following compounds should be insoluble in water?

Correct Answer
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Thorium metal is prepared by reacting thorium oxide with calcium. ThO₂ + 2Ca $\rarr$ Th + 2CaO What is the reducing agent in this process?

Correct Answer
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Correct Answer
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Sugar dissolves in water, therefore it is a strong electrolyte.

Correct Answer
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What is the chemical formula of the salt produced by the complete neutralization of sodium hydroxide with sulfuric acid?

Correct Answer
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Give an example of a diprotic acid.

Correct Answer
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Calcium nitrate tetrahydrate dissolves in cold water to the extent of 266 g per 100.cm³. What is the concentration of nitrate ions in this solution?

Correct Answer
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Identify the following compound as an electrolyte or nonelectrolyte: C₁₂H₂₂O₁₁(sucrose).

Correct Answer
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Identify the following compounds as a strong electrolytes, weak electrolytes, or nonelectrolytes: KNO₃, KNO₂, HNO₃, HNO₂,

Correct Answer
verified
KNO₃, KNO₂, and HNO₃ ar...
View Answer

Batteries in our cars generate electricity by the following chemical reaction. Pb + PbO₂ + 2H₂SO₄ $\rarr$ 2PbSO₄ + 2H₂O Which substance is oxidized in this process?

Correct Answer
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Which of the following compounds is a nonelectrolyte?

Correct Answer
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Batteries in our cars generate electricity by the following chemical reaction. Pb + PbO₂ + 2H₂SO₄ $\rarr$ 2PbSO₄ + 2H₂O What is the oxidizing agent in this process?

Correct Answer
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Which one of the following is a redox reaction?

Correct Answer
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Exam 4: Reactions in Aqueous Solution

Describe the procedure used to make 3.0 liters of a 2.0 M KCl solution, starting with solid KCl and water.

Correct AnswerverifiedDetermine the molar mass of KC...View AnswerShow Answer

In the following chemical reaction the oxidizing agent is 5H2O2 + 2MnO4- + 6H+ →\rarr→ 2Mn2+ + 8H2O + 5O2

Correct AnswerverifiedShow Answer

Based on the solubility rules, which one of the following should be soluble in water?

Correct AnswerverifiedShow Answer

The solubility of Ba(NO3)2 is 130.5 grams per liter at 0°C. How many moles of dissolved salt are present in 4.0 liters of a saturated solution of Ba(NO3)2 at 0ºC?

Correct AnswerverifiedShow Answer

A piece of zinc metal was added to an aqueous solution of lead(II)nitrate.After some time it was observed that the zinc metal had appeared to fall apart and a solid had accumulated at the bottom of the reaction vessel. Write the balanced chemical equation for this reaction.

Correct AnswerverifiedZn(s)+ Pb(...View AnswerShow Answer

Give an example of a monoprotic acid.

Correct AnswerverifiedShow Answer

Based on the solubility rules, which one of the following compounds should be insoluble in water?

Correct AnswerverifiedShow Answer

Based on the solubility rules, which one of the following compounds should be insoluble in water?

Correct AnswerverifiedShow Answer

Thorium metal is prepared by reacting thorium oxide with calcium. ThO2 + 2Ca →\rarr→ Th + 2CaO What is the reducing agent in this process?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Sugar dissolves in water, therefore it is a strong electrolyte.

Correct AnswerverifiedShow Answer

What is the chemical formula of the salt produced by the complete neutralization of sodium hydroxide with sulfuric acid?

Correct AnswerverifiedShow Answer

Give an example of a diprotic acid.

Correct AnswerverifiedShow Answer

Calcium nitrate tetrahydrate dissolves in cold water to the extent of 266 g per 100.cm3. What is the concentration of nitrate ions in this solution?

Correct AnswerverifiedShow Answer

Identify the following compound as an electrolyte or nonelectrolyte: C12H22O11(sucrose).

Correct AnswerverifiedShow Answer

Identify the following compounds as a strong electrolytes, weak electrolytes, or nonelectrolytes: KNO3, KNO2, HNO3, HNO2,

Correct AnswerverifiedKNO3, KNO2, and HNO3 ar...View AnswerShow Answer

Batteries in our cars generate electricity by the following chemical reaction. Pb + PbO2 + 2H2SO4 →\rarr→ 2PbSO4 + 2H2O Which substance is oxidized in this process?

Correct AnswerverifiedShow Answer

Which of the following compounds is a nonelectrolyte?

Correct AnswerverifiedShow Answer

Batteries in our cars generate electricity by the following chemical reaction. Pb + PbO2 + 2H2SO4 →\rarr→ 2PbSO4 + 2H2O What is the oxidizing agent in this process?

Correct AnswerverifiedShow Answer

Which one of the following is a redox reaction?

Correct AnswerverifiedShow Answer

Correct Answer
verified
Determine the molar mass of KC...
View Answer

In the following chemical reaction the oxidizing agent is 5H₂O₂ + 2MnO₄^- + 6H⁺ $\rarr$ 2Mn²⁺ + 8H₂O + 5O₂

Correct Answer
verified

Correct Answer
verified

The solubility of Ba(NO₃)₂ is 130.5 grams per liter at 0°C. How many moles of dissolved salt are present in 4.0 liters of a saturated solution of Ba(NO₃)₂ at 0ºC?

Correct Answer
verified

Correct Answer
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Zn(s)+ Pb(...
View Answer

Correct Answer
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Correct Answer
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Correct Answer
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Thorium metal is prepared by reacting thorium oxide with calcium. ThO₂ + 2Ca $\rarr$ Th + 2CaO What is the reducing agent in this process?

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Calcium nitrate tetrahydrate dissolves in cold water to the extent of 266 g per 100.cm³. What is the concentration of nitrate ions in this solution?

Correct Answer
verified

Identify the following compound as an electrolyte or nonelectrolyte: C₁₂H₂₂O₁₁(sucrose).

Correct Answer
verified

Identify the following compounds as a strong electrolytes, weak electrolytes, or nonelectrolytes: KNO₃, KNO₂, HNO₃, HNO₂,

Correct Answer
verified
KNO₃, KNO₂, and HNO₃ ar...
View Answer

Batteries in our cars generate electricity by the following chemical reaction. Pb + PbO₂ + 2H₂SO₄ $\rarr$ 2PbSO₄ + 2H₂O Which substance is oxidized in this process?

Correct Answer
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Correct Answer
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Batteries in our cars generate electricity by the following chemical reaction. Pb + PbO₂ + 2H₂SO₄ $\rarr$ 2PbSO₄ + 2H₂O What is the oxidizing agent in this process?

Correct Answer
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Correct Answer
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