Question 1

Silver sulfate (Ag2SO4)  has a Ksp of 1.20×10-5 at  25∘C25 ^ { \circ } \mathrm { C }25∘C  . If 20.0mL of 0.010M AgNO3 is added to 120mL of 6.75×10-3M Na2SO4, what is the ion product of silver sulfate?

Accepted Answer

A)   2.87×10-7 M2
B)   4.68×10-6 M2
C)   7.25×10-6 M2
D)   6.34×10-7 M2
E)   8.27×10-6 M2 F) B) and E)
G) D) and E)

Question 2

Which of the following cations is most likely to form insoluble carbonates?

Accepted Answer

A)   Ca2+
B)   Cu2+
C)   Co2+
D)   Cd2+
E)   Cr3+F) D) and E)
G) B) and C)

Question 3

Incomplete dissociation of a molecular solute that is miscible with water can increase the solubility of the solute.

Accepted Answer

A) True 
 B)False

Question 4

The solubility product of barium sulfate (BaSO4)  is 1.08×10-10 at  25∘C25 ^ { \circ } \mathrm { C }25∘C  . If 15.0mL of 0.0040M Na2SO4 is added to 125mL of 6.4×10-4M BaCl2, what is the ion product of BaSO4?

Accepted Answer

A)   3.89×10-6 M2
B)   2.45×10-7 M2
C)   7.20×10-6 M2
D)   5.98×10-7 M2
E)   8.86×10-7 M2 F) D) and E)
G) A) and B)

Question 5

The concentration of a pure solid appears explicitly in the equilibrium constant expression.

Accepted Answer

A) True 
 B)False

Question 6

If the Ksp of AgCl is equal to 3.89×10-10 and the Kf of  AgCl2−\mathrm { AgCl } _ { 2 } ^ { - }AgCl2−​  is 2.8×105, what is the equilibrium constant for the reaction?

Accepted Answer

A)   1.1×10-4
B)   6.8×10-5
C)   2.3×10-5
D)   5.7×10-4
E)   9.5×10-4 F) A) and D)
G) B) and D)

Question 7

Consecutive precipitation steps become progressively less selective until almost all of the metal ions are precipitated.

Accepted Answer

A) True 
 B)False

Question 8

The concentration of anions in solution can often be controlled by adjusting the pH, thereby allowing the selective precipitation of cations.

Accepted Answer

A) True 
 B)False

Question 9

Which of the following cations is most likely to form insoluble phosphates?

Accepted Answer

A)   Pb2+
B)   As3+
C)   Fe3+
D)   Na2+
E)   Ba2+F) D) and E)
G) A) and B)

Question 10

Which of the following is the chemical equation that describes the dissolution of aluminum hydroxide in an acid?

Accepted Answer

A)    Al(OH) 3+OH−→[Al(OH) 4]−\mathrm { Al } ( \mathrm { OH } )  _ { 3 } + \mathrm { OH } ^ { - } \rightarrow \left[ \mathrm { Al } ( \mathrm { OH } )  _ { 4 } \right] ^ { - }Al(OH) 3​+OH−→[Al(OH) 4​]− 
B)    Al(OH) 3+3H+→Al3++3H2O\mathrm { Al } ( \mathrm { OH } )  _ { 3 } + 3 \mathrm { H } ^ { + } \rightarrow \mathrm { Al } ^ { 3 + } + 3 \mathrm { H } _ { 2 } \mathrm { O }Al(OH) 3​+3H+→Al3++3H2​O 
C)    2Al(OH) 3+2H+→2Al2O3+2H22 \mathrm { Al } ( \mathrm { OH } )  _ { 3 } + 2 \mathrm { H } ^ { + } \rightarrow 2 \mathrm { Al } _ { 2 } \mathrm { O } _ { 3 } + 2 \mathrm { H } _ { 2 }2Al(OH) 3​+2H+→2Al2​O3​+2H2​ 
D)    2Al(OH) 3+2OH−→Al2O3+4H2O2 \mathrm { Al } ( \mathrm { OH } )  _ { 3 } + 2 \mathrm { OH } ^ { - } \rightarrow \mathrm { Al } _ { 2 } \mathrm { O } _ { 3 } + 4 \mathrm { H } _ { 2 } \mathrm { O }2Al(OH) 3​+2OH−→Al2​O3​+4H2​O 
E)    Al(OH) 3→Al3++3OH−\mathrm { Al } ( \mathrm { OH } )  _ { 3 } \rightarrow \mathrm { Al } ^ { 3 + } + 3 \mathrm { OH } ^ { - }Al(OH) 3​→Al3++3OH−F) B) and C)
G) None of the above

Question 11

Explain the application of complexing agents in the medical industry.

Accepted Answer

MRI is based on the magnetic properties ...

Question 12

Explain the process of determining the solubility product of a salt.

Accepted Answer

When a slightly soluble ionic compound i...

Question 13

The _____ of a salt is the product of the concentrations of the ions in solution raised to the same powers as in the solubility product expression.

Accepted Answer

The answer of The _____ of a salt is the...

Question 14

The reaction of weakly basic anions with H2O tends to make the actual solubility of many salts higher than predicted.

Accepted Answer

A) True 
 B)False

Question 15

Define the ion product of a salt and state the three possible conditions for an aqueous solution of an ionic solid.

Accepted Answer

The ion product of a salt is the product...

Question 16

Explain the formation of stalactites and stalagmites in caves.

Accepted Answer

When groundwater-containing atmospheric ...

Question 17

A(n) _____ is a spire of limestone that grows upwards from the cave floor in the region where the droplets land when they fall from the ceiling.

Accepted Answer

The answer of A(n) _____ is a spire of limestone...

Question 18

Ag+, Pb2+, and Hg22+ form chlorides that are soluble in water.

Accepted Answer

A) True 
 B)False

Question 19

_____ is a procedure for determining the identity of metal ions present in a mixture, rather than quantitative information about their amounts.

Accepted Answer

Qualitativ...

Question 20

How is the solubility of any sparingly soluble salt influenced by the common ion effect?

Accepted Answer

The solubility product expression tells ...

Exam 17: Solubility and Complexation Equilibriums

Silver sulfate (Ag2SO4) has a Ksp of 1.20×10-5 at 25∘C25 ^ { \circ } \mathrm { C }25∘C . If 20.0mL of 0.010M AgNO3 is added to 120mL of 6.75×10-3M Na2SO4, what is the ion product of silver sulfate?

Correct AnswerverifiedShow Answer

How is the solubility of any sparingly soluble salt influenced by the common ion effect?

Correct AnswerverifiedThe solubility product expression tells ...View AnswerShow Answer

Incomplete dissociation of a molecular solute that is miscible with water can increase the solubility of the solute.

Correct AnswerverifiedShow Answer

Ag+, Pb2+, and Hg22+ form chlorides that are soluble in water.

Correct AnswerverifiedShow Answer

The reaction of weakly basic anions with H2O tends to make the actual solubility of many salts higher than predicted.

Correct AnswerverifiedShow Answer

_____ is a procedure for determining the identity of metal ions present in a mixture, rather than quantitative information about their amounts.

Correct AnswerverifiedQualitativ...View AnswerShow Answer

Consecutive precipitation steps become progressively less selective until almost all of the metal ions are precipitated.

Correct AnswerverifiedShow Answer

The concentration of a pure solid appears explicitly in the equilibrium constant expression.

Correct AnswerverifiedShow Answer

If the Ksp of AgCl is equal to 3.89×10-10 and the Kf of AgCl2−\mathrm { AgCl } _ { 2 } ^ { - }AgCl2−​ is 2.8×105, what is the equilibrium constant for the reaction?

Correct AnswerverifiedShow Answer

Which of the following cations is most likely to form insoluble carbonates?

Correct AnswerverifiedShow Answer

The solubility product of barium sulfate (BaSO4) is 1.08×10-10 at 25∘C25 ^ { \circ } \mathrm { C }25∘C . If 15.0mL of 0.0040M Na2SO4 is added to 125mL of 6.4×10-4M BaCl2, what is the ion product of BaSO4?

Correct AnswerverifiedShow Answer

The _____ of a salt is the product of the concentrations of the ions in solution raised to the same powers as in the solubility product expression.

Correct AnswerverifiedShow Answer

Define the ion product of a salt and state the three possible conditions for an aqueous solution of an ionic solid.

Correct AnswerAnswered by ExamLex AIThe ion product of a salt is the product...View AnswerShow Answer

Which of the following is the chemical equation that describes the dissolution of aluminum hydroxide in an acid?

Correct AnswerverifiedShow Answer

Explain the process of determining the solubility product of a salt.

Correct AnswerverifiedWhen a slightly soluble ionic compound i...View AnswerShow Answer

The concentration of anions in solution can often be controlled by adjusting the pH, thereby allowing the selective precipitation of cations.

Correct AnswerverifiedShow Answer

Explain the formation of stalactites and stalagmites in caves.

Correct AnswerverifiedWhen groundwater-containing atmospheric ...View AnswerShow Answer

A(n) _____ is a spire of limestone that grows upwards from the cave floor in the region where the droplets land when they fall from the ceiling.

Correct AnswerverifiedShow Answer

Which of the following cations is most likely to form insoluble phosphates?

Correct AnswerverifiedShow Answer

Explain the application of complexing agents in the medical industry.

Correct AnswerverifiedMRI is based on the magnetic properties ...View AnswerShow Answer

Silver sulfate (Ag₂SO4) has a K_sp of 1.20×10^-5 at $25 ^ { \circ } \mathrm { C }$ . If 20.0mL of 0.010M AgNO₃ is added to 120mL of 6.75×10^-3M Na₂SO₄, what is the ion product of silver sulfate?

Correct Answer
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The solubility product expression tells ...
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Ag⁺, Pb²⁺, and Hg₂²⁺ form chlorides that are soluble in water.

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The reaction of weakly basic anions with H₂O tends to make the actual solubility of many salts higher than predicted.

Correct Answer
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Correct Answer
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Qualitativ...
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If the K_spof AgCl is equal to 3.89×10^-10 and the K_f of $\mathrm { AgCl } _ { 2 } ^ { - }$ is 2.8×10⁵, what is the equilibrium constant for the reaction?

Correct Answer
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Correct Answer
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The solubility product of barium sulfate (BaSO₄) is 1.08×10^-10 at $25 ^ { \circ } \mathrm { C }$ . If 15.0mL of 0.0040M Na₂SO₄ is added to 125mL of 6.4×10^-4M BaCl₂, what is the ion product of BaSO₄?

Correct Answer
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Correct Answer
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The ion product of a salt is the product...
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When a slightly soluble ionic compound i...
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Correct Answer
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When groundwater-containing atmospheric ...
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Correct Answer
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MRI is based on the magnetic properties ...
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