Question 1

What are the spectator ions in the reaction between KCl (aq) and AgNO3 (aq) ?

Accepted Answer

A)  K+ and Ag+
B)  Ag+ and Cl-
C)  K+ and NO3-
D)  Ag+ and NO3-
E)  K+ only

Question 2

Which of the following is soluble in water at 25 °C?

Accepted Answer

A)  AgNO3
B)  Hg2Cl2
C)  PbCl2
D)  Ag2S
E)  AgCl

Question 3

Oxidation is the ________ and reduction is the ________.

Accepted Answer

A)  gain of oxygen, loss of electrons
B)  loss of oxygen, gain of electrons
C)  loss of electrons, gain of electrons
D)  gain of oxygen, loss of mass
E)  gain of electrons, loss of electrons

Question 4

Combining aqueous solutions of BaI2 and Na2SO4  affords a precipitate of BaSO4. Which ions are spectator ions in the reaction?

Accepted Answer

A)  Ba2+ only
B)  Na+ only
C)  Ba2+ and SO42-
D)  Na+ and I-
E)  SO42- and I-

Question 5

The compound NH4Cl is a weak acid.

Accepted Answer

A) True 
 B)False

Question 6

A solution is prepared by adding 1.50 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)  0.713
B)  0.613
C)  0.130
D)  0.230
E)  0.513

Question 7

What volume (L) of 0.250 M HNO3 is required to neutralize a solution prepared by dissolving 17.5 g of NaOH in 350 mL of water?

Accepted Answer

A)  50.0
B)  0.44
C)  1.75
D)  0.070
E)  1.75 × 3 is required to neutralize a solution prepared by dissolving 17.5 g of NaOH in 350 mL of water? 
A)  50.0 
B)  0.44 
C)  1.75 
D)  0.070 
E)  1.75 ×  " class="answers-bank-image d-inline" rel="preload" >

Question 8

Of the following elements, ________ is the only one that cannot be found in nature in its elemental form. Cu
Hg
Au
Ag
Na

Accepted Answer

A)  Cu
B)  Hg
C)  Au
D)  Ag
E)  Na

Question 9

The concentration (M) of an aqueous methanol produced when 0.200 L of a 2.00 M solution was diluted to 0.800 L is ________.

Accepted Answer

A)  0.800
B)  0.200
C)  0.500
D)  0.400
E)  8.00

Question 10

What are the spectator ions in the reaction between KOH (aq) and HNO3 (aq) ?

Accepted Answer

A)  K+ and H+
B)  H+ and OH-
C)  K+ and NO3-
D)  H+ and NO3-
E)  OH- only

Question 11

Which compound has the atom with the highest oxidation number?

Accepted Answer

A)  CaS
B)  Na3N
C)  MgSO3
D)  Al(NO2) 3
E)  NH4Cl

Question 12

A strong electrolyte is one that ________ completely in solution.

Accepted Answer

A)  reacts
B)  associates
C)  disappears
D)  ionizes

Question 13

A 25.5 mL aliquot of HCl (aq) of unknown concentration was titrated with 0.113 M NaOH (aq) . It took 51.2 mL of the base to reach the endpoint of the titration. The concentration (M) of the acid was ________.

Accepted Answer

A)  1.02
B)  0.114
C)  0.454
D)  0.113
E)  0.227

Question 14

What is the concentration (M) of 39.88 mL of an unknown NaOH solution if it required 46.08 mL of 0.6592 M HCl to neutralize?

Accepted Answer

A)  0.7617
B)  2788
C)  1211
D)  1.313
E)  1.211

Question 15

Which one of the following compounds is insoluble in water?

Accepted Answer

A)  K2SO4
B)  Ca(C2H3O2) 2
C)  MgC2O4
D)  ZnCl2
E)  Mn(NO3) 2

Question 16

Zinc is more active than cobalt and iron but less active than aluminum. Cobalt is more active than nickel but less active than iron. Which of the following correctly lists the elements in order of increasing activity?

Accepted Answer

A)  Co 
B)  Ni 
C)  Ni 
D)  Fe 
E)  Zn < Al < Co < Ni < Fe

Question 17

The net ionic equation for the reaction between aqueous sulfuric acid and aqueous sodium hydroxide is ________.

Accepted Answer

A)  H+ (aq)  + HSO4- (aq)  + 2OH- (aq)  → 2H2O (l)  + SO42- (aq) 
B)  H+ (aq)  + HSO4- (aq)  + 2Na+ (aq)  + 2OH- (aq)  → 2H2O (l)  + 2Na+ (aq)  + SO42-(aq) 
C)  SO42- (aq)  + 2Na+ (aq)  → 2Na+ (aq)  + SO42-(aq) 
D)  H+ (aq)  + OH- (aq)  → H2O( l) 
E)  2H+ (aq)  + SO42- (aq)  + 2Na+ (aq)  + 2OH- (aq)  → 2H2O (l)  + 2Na+ (aq)  + SO42- (aq)

Question 18

What are the respective concentrations (M) of Na+ and SO42- afforded by dissolving 0.500 mol Na2SO4 in water and diluting to 1.33 L?

Accepted Answer

A)  0.665 and 0.665
B)  0.665 and 1.33
C)  1.33 and 0.665
D)  0.376 and 0.752
E)  0.752 and 0.376

Question 19

Aqueous solutions of a compound did not form precipitates with Cl-, Br-, I-, SO42-, CO32-, PO43-, OH-, or S2-. This highly water-soluble compound produced the foul-smelling gas H2S when the solution was acidified. This compound is ________.

Accepted Answer

A)  Pb(NO3) 2
B)  (NH4) 2S
C)  KBr
D)  Li2CO3
E)  AgNO3

Question 20

How many grams of NaOH (MW = 40.0)are there in 375.0 mL of a 0.325 M NaOH solution?

Accepted Answer

The answer of How many grams of NaOH (MW =...

Exam 4: Aqueous Reactions and Solution Stoichiometry

A solution is prepared by adding 1.50 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.

Correct AnswerverifiedShow Answer

Which one of the following compounds is insoluble in water?

Correct AnswerverifiedShow Answer

Combining aqueous solutions of BaI2 and Na2SO4 affords a precipitate of BaSO4. Which ions are spectator ions in the reaction?

Correct AnswerverifiedShow Answer

What are the spectator ions in the reaction between KOH (aq) and HNO3 (aq) ?

Correct AnswerverifiedShow Answer

The net ionic equation for the reaction between aqueous sulfuric acid and aqueous sodium hydroxide is ________.

Correct AnswerverifiedShow Answer

How many grams of NaOH (MW = 40.0)are there in 375.0 mL of a 0.325 M NaOH solution?

Correct AnswerverifiedShow Answer

What are the respective concentrations (M) of Na+ and SO42- afforded by dissolving 0.500 mol Na2SO4 in water and diluting to 1.33 L?

Correct AnswerverifiedShow Answer

Which compound has the atom with the highest oxidation number?

Correct AnswerverifiedShow Answer

Aqueous solutions of a compound did not form precipitates with Cl-, Br-, I-, SO42-, CO32-, PO43-, OH-, or S2-. This highly water-soluble compound produced the foul-smelling gas H2S when the solution was acidified. This compound is ________.

Correct AnswerverifiedShow Answer

Which of the following is soluble in water at 25 °C?

Correct AnswerverifiedShow Answer

Oxidation is the ________ and reduction is the ________.

Correct AnswerverifiedShow Answer

A strong electrolyte is one that ________ completely in solution.

Correct AnswerverifiedShow Answer

What are the spectator ions in the reaction between KCl (aq) and AgNO3 (aq) ?

Correct AnswerverifiedShow Answer

What is the concentration (M) of 39.88 mL of an unknown NaOH solution if it required 46.08 mL of 0.6592 M HCl to neutralize?

Correct AnswerverifiedShow Answer

The compound NH4Cl is a weak acid.

Correct AnswerverifiedShow Answer

Of the following elements, ________ is the only one that cannot be found in nature in its elemental form. Cu Hg Au Ag Na

Correct AnswerverifiedShow Answer

A 25.5 mL aliquot of HCl (aq) of unknown concentration was titrated with 0.113 M NaOH (aq) . It took 51.2 mL of the base to reach the endpoint of the titration. The concentration (M) of the acid was ________.

Correct AnswerverifiedShow Answer

Zinc is more active than cobalt and iron but less active than aluminum. Cobalt is more active than nickel but less active than iron. Which of the following correctly lists the elements in order of increasing activity?

Correct AnswerverifiedShow Answer

What volume (L) of 0.250 M HNO3 is required to neutralize a solution prepared by dissolving 17.5 g of NaOH in 350 mL of water?

Correct AnswerverifiedShow Answer

The concentration (M) of an aqueous methanol produced when 0.200 L of a 2.00 M solution was diluted to 0.800 L is ________.

Correct AnswerverifiedShow Answer

A solution is prepared by adding 1.50 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.

Correct Answer
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Combining aqueous solutions of BaI₂ and Na₂SO₄ affords a precipitate of BaSO₄. Which ions are spectator ions in the reaction?

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What are the spectator ions in the reaction between KOH (aq) and HNO₃(aq) ?

Correct Answer
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What are the respective concentrations (M) of Na⁺ and SO₄^2-afforded by dissolving 0.500 mol Na₂SO₄in water and diluting to 1.33 L?

Correct Answer
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Aqueous solutions of a compound did not form precipitates with Cl^-, Br^-, I^-, SO₄^2-, CO₃^2-, PO₄^3-, OH^-, or S^2-. This highly water-soluble compound produced the foul-smelling gas H₂S when the solution was acidified. This compound is ________.

Correct Answer
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Oxidation is the and reduction is the .

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What are the spectator ions in the reaction between KCl (aq) and AgNO₃(aq) ?

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The compound NH₄Cl is a weak acid.

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What volume (L) of 0.250 M HNO₃is required to neutralize a solution prepared by dissolving 17.5 g of NaOH in 350 mL of water?

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