Question 1

A(n) _____ bond holds together undissociated electrolytes, such as C6H5CO2H.

Accepted Answer

A)  polar covalent 
B)  electrostatic 
C)  nonpolar covalent 
D)  ionic 
E)  metallic 
A)  polar covalent 
B)  electrostatic 
C)  nonpolar covalent 
D)  ionic 
E)  metallic

Question 2

If the Ksp for Ca3(PO4)2 at $30 ^ { \circ } \mathrm { C }$ is 6.47×10-32, what is the aqueous solubility of Ca3(PO4)2 in terms of the molarity of ions produced in solution?

Accepted Answer

A)  2.27×10-7M 
B)  6.23×10-9M 
C)  1.44×10-9M 
D)  8.82×10-7M 
E)  5.50×10-8M 
A)  2.27×10-7M 
B)  6.23×10-9M 
C)  1.44×10-9M 
D)  8.82×10-7M 
E)  5.50×10-8M

Question 3

The growth of excessive amounts of algae in a body of water, which can eventually lead to large decreases in levels of dissolved oxygen that kill fish and other aquatic organisms is called _____.

Accepted Answer

The answer of The growth of excessive amounts of algae...

Question 4

What are amphoteric oxides?

Accepted Answer

A)  They are oxides that dissolve in acid to produce water and dissolve in base to produce a soluble complex. 
B)  They react with water to produce Lewis bases and react with aqueous ammonia to produce Lewis acids. 
C)  They are oxides that dissolve only in aqueous bases. 
D)  They are oxides that react with water to form only basic solutions. 
E)  They are oxides that react with water to form only acidic solutions. 
A)  They are oxides that dissolve in acid to produce water and dissolve in base to produce a soluble complex. 
B)  They react with water to produce Lewis bases and react with aqueous ammonia to produce Lewis acids. 
C)  They are oxides that dissolve only in aqueous bases. 
D)  They are oxides that react with water to form only basic solutions. 
E)  They are oxides that react with water to form only acidic solutions.

Question 5

pH has little to no effect on the solubility of salts whose anion is the conjugate base of a stronger weak acid or a strong acid.

Accepted Answer

A) True 
 B)False

Question 6

The equilibrium constant expression for the dissolution of calcium phosphate is _____.

Accepted Answer

A)  $\frac { \mathrm { Ca } _ { 3 } \left( \mathrm { PO } _ { 4 } \right) _ { 2 } } { \left[ \mathrm { Ca } ^ { 2 + } \right] ^ { 3 } \left[ \mathrm { PO } _ { 4 } ^ { 3 - } \right] ^ { 2 } }$ 
B)  $\frac { \left[ \mathrm { Ca } ^ { 2 + } \right] ^ { 2 } \left[ \mathrm { PO } _ { 4 } ^ { 3 - } \right] ^ { 3 } } { \mathrm { Ca } _ { 3 } \left( \mathrm { PO } _ { 4 } \right) _ { 2 } }$ 
C)  $\frac { \mathrm { Ca } _ { 3 } \left( \mathrm { PO } _ { 4 } \right) _ { 2 } } { \left[ \mathrm { Ca } ^ { 2 + } \right] ^ { 2 } \left[ \mathrm { PO } _ { 4 } ^ { 3 - } \right] ^ { 3 } }$ 
D)  $\frac { \mathrm { Ca } _ { 3 } \left( \mathrm { PO } _ { 4 } \right) _ { 2 } } { \left[ \mathrm { Ca } ^ { 2 + } \right] ^ { 3 } + \left[ \mathrm { PO } _ { 4 } ^ { 3 - } \right] ^ { 2 } }$ 
E)  $\frac { \left[ \mathrm { Ca } ^ { 2 + } \right] ^ { 3 } \left[ \mathrm { PO } _ { 4 } ^ { 3 - } \right] ^ { 2 } } { \mathrm { Ca } _ { 3 } \left( \mathrm { PO } _ { 4 } \right) _ { 2 } }$ 
A)  $\frac { \mathrm { Ca } _ { 3 } \left( \mathrm { PO } _ { 4 } \right) _ { 2 } } { \left[ \mathrm { Ca } ^ { 2 + } \right] ^ { 3 } \left[ \mathrm { PO } _ { 4 } ^ { 3 - } \right] ^ { 2 } }$ 
B)  $\frac { \left[ \mathrm { Ca } ^ { 2 + } \right] ^ { 2 } \left[ \mathrm { PO } _ { 4 } ^ { 3 - } \right] ^ { 3 } } { \mathrm { Ca } _ { 3 } \left( \mathrm { PO } _ { 4 } \right) _ { 2 } }$ 
C)  $\frac { \mathrm { Ca } _ { 3 } \left( \mathrm { PO } _ { 4 } \right) _ { 2 } } { \left[ \mathrm { Ca } ^ { 2 + } \right] ^ { 2 } \left[ \mathrm { PO } _ { 4 } ^ { 3 - } \right] ^ { 3 } }$ 
D)  $\frac { \mathrm { Ca } _ { 3 } \left( \mathrm { PO } _ { 4 } \right) _ { 2 } } { \left[ \mathrm { Ca } ^ { 2 + } \right] ^ { 3 } + \left[ \mathrm { PO } _ { 4 } ^ { 3 - } \right] ^ { 2 } }$ 
E)  $\frac { \left[ \mathrm { Ca } ^ { 2 + } \right] ^ { 3 } \left[ \mathrm { PO } _ { 4 } ^ { 3 - } \right] ^ { 2 } } { \mathrm { Ca } _ { 3 } \left( \mathrm { PO } _ { 4 } \right) _ { 2 } }$

Question 7

The equilibrium constant for the formation of a complex ion from a hydrated metal ion is called the _____.

Accepted Answer

The answer of The equilibrium constant for the formation of...

Question 8

Which of the following cations is most likely to form acid-insoluble sulfides?

Accepted Answer

A)  Ag+ 
B)  Cd2+ 
C)  Cr3+ 
D)  Mg2+ 
E)  NH4+ 
A)  Ag+ 
B)  Cd2+ 
C)  Cr3+ 
D)  Mg2+ 
E)  NH4+

Question 9

Cu(II) forms the complex ion [Cu(H2O)6]2+ through equilibrium reactions in which ammonia replaces water in a stepwise manner. If log K1 = 4.78, log K2 = 2.36, log K3 = -0.76, and log K4 = -0.53, what is its Kf?

Accepted Answer

A)  1.41×1024 
B)  4.67×1023 
C)  7.89×1024 
D)  4.35×1024 
E)  8.54×1023 
A)  1.41×1024 
B)  4.67×1023 
C)  7.89×1024 
D)  4.35×1024 
E)  8.54×1023

Question 10

Differentiate between acidic, basic, and amphoteric oxides.

Accepted Answer

Basic oxides either react with water to

Question 11

If the Ksp of calcium oxalate monohydrate at $42 ^ { \circ } \mathrm { C }$ is 6.45×10-8, what is its solubility in water at the same temperature?

Accepted Answer

A)  6.21×10-4 g/100mL 
B)  8.76×10-3 g/100mL 
C)  3.71×10-3 g/100mL 
D)  1.24×10-4 g/100mL 
E)  6.02×10-3 g/100mL 
A)  6.21×10-4 g/100mL 
B)  8.76×10-3 g/100mL 
C)  3.71×10-3 g/100mL 
D)  1.24×10-4 g/100mL 
E)  6.02×10-3 g/100mL

Question 12

Explain the effect of the formation of complex ions on solubility with an example.

Accepted Answer

The black-and-white photographic film co

Question 13

If the Ksp for AgCl is equal to 4.65×10-9 and the Kf for $\mathrm { AgCl } _ { 2 } ^ { - }$ is equal to 8.7×105 at $35 ^ { \circ } \mathrm { C }$ , what is the solubility of AgCl in 1.0 M KCl solution, ignoring the formation of any complex ions?

Accepted Answer

A)  3.24×10-10M 
B)  6.82×10-9M 
C)  4.67×10-10M 
D)  9.65×10-9M 
E)  4.65×10-9M 
A)  3.24×10-10M 
B)  6.82×10-9M 
C)  4.67×10-10M 
D)  9.65×10-9M 
E)  4.65×10-9M

Question 14

Explain the purpose of adding complexing agents in laundry detergents.

Accepted Answer

Complexing agents, molecules or ions tha

Question 15

If the Ksp for zinc carbonate (ZnCO3) is 1.46×10-10 at $25 ^ { \circ } \mathrm { C }$ , what is its aqueous solubility in terms of the molarity of ions produced in solution?

Accepted Answer

A)  1.21×10-5 M 
B)  4.56×10-5 M 
C)  8.13×10-5 M 
D)  3.78×10-6 M 
E)  7.44×10-6 M 
A)  1.21×10-5 M 
B)  4.56×10-5 M 
C)  8.13×10-5 M 
D)  3.78×10-6 M 
E)  7.44×10-6 M

Question 16

If the Ksp of calcium sulfate (CaSO4) at $25.0 ^ { \circ } \mathrm { C }$ is 4.93×10-5, what is its solubility in 0.200M CaCl2?

Accepted Answer

A)  6.89×10-5 M 
B)  1.36×10-5 M 
C)  8.78×10-4 M 
D)  2.47×10-4 M 
E)  9.25×10-5 M 
A)  6.89×10-5 M 
B)  1.36×10-5 M 
C)  8.78×10-4 M 
D)  2.47×10-4 M 
E)  9.25×10-5 M

Question 17

The common ion effect usually increases the solubility of a sparingly soluble salt.

Accepted Answer

A) True 
 B)False

Question 18

A(n) _____ is a long, hollow spire of limestone that grows down from the ceiling in caves.

Accepted Answer

The answer of A(n) _____ is a long, hollow spire...

Question 19

If 20.0 g of Cu(NO3)2.6H2O is added to 750mL of 1.00M aqueous ammonia, what is the equilibrium concentration of Cu2+ (aq) ? The complex formed is $\left[ \mathrm { Cu } \left( \mathrm { NH } _ { 3 } \right) _ { 4 } \right] ^ { 2 + }$ Given Kf = 2.1×1013.

Accepted Answer

A)  4.5×10-12 
B)  2.6×10-14 
C)  1.5×10-13 
D)  6.4×10-14 
E)  8.3×10-12 
A)  4.5×10-12 
B)  2.6×10-14 
C)  1.5×10-13 
D)  6.4×10-14 
E)  8.3×10-12

Question 20

The equilibrium constant expression for the dissolution of lead (II) chloride is _____.

Accepted Answer

A)  $\frac { \left[ \mathrm { Pb } ^ { 2 + } \right] ^ { 2 } \left[ \mathrm { Cl } ^ { - } \right] } { \mathrm { PbCl } _ { 2 } }$ 
B)  $\frac { \left[ \mathrm { Pb } ^ { 2 + } \right] \left[ \mathrm { Cl } ^ { - } \right] ^ { 2 } } { \mathrm { PbCl } _ { 2 } }$ 
C)  $\frac { \mathrm { PbCl } _ { 2 } } { \left[ \mathrm {~Pb} ^ { 2 + } \right] \left[ \mathrm { Cl } ^ { - } \right] ^ { 2 } }$ 
D)  $\frac { \left[ \mathrm { Pb } ^ { 2 + } \right] \left[ \mathrm { Cl } ^ { - } \right] } { \mathrm { PbCl } _ { 2 } }$ 
E)  $\frac { \mathrm { PbCl } _ { 2 } } { \left[ \mathrm {~Pb} ^ { 2 + } \right] \left[ \mathrm { Cl } ^ { - } \right] }$ 
A)  $\frac { \left[ \mathrm { Pb } ^ { 2 + } \right] ^ { 2 } \left[ \mathrm { Cl } ^ { - } \right] } { \mathrm { PbCl } _ { 2 } }$ 
B)  $\frac { \left[ \mathrm { Pb } ^ { 2 + } \right] \left[ \mathrm { Cl } ^ { - } \right] ^ { 2 } } { \mathrm { PbCl } _ { 2 } }$ 
C)  $\frac { \mathrm { PbCl } _ { 2 } } { \left[ \mathrm {~Pb} ^ { 2 + } \right] \left[ \mathrm { Cl } ^ { - } \right] ^ { 2 } }$ 
D)  $\frac { \left[ \mathrm { Pb } ^ { 2 + } \right] \left[ \mathrm { Cl } ^ { - } \right] } { \mathrm { PbCl } _ { 2 } }$ 
E)  $\frac { \mathrm { PbCl } _ { 2 } } { \left[ \mathrm {~Pb} ^ { 2 + } \right] \left[ \mathrm { Cl } ^ { - } \right] }$

Exam 17: Solubility and Complexation Equilibriums

A(n) _____ bond holds together undissociated electrolytes, such as C6H5CO2H.

If the Ksp for Ca3(PO4)2 at 30∘C30 ^ { \circ } \mathrm { C }30∘C is 6.47×10-32, what is the aqueous solubility of Ca3(PO4)2 in terms of the molarity of ions produced in solution?

The growth of excessive amounts of algae in a body of water, which can eventually lead to large decreases in levels of dissolved oxygen that kill fish and other aquatic organisms is called _____.

What are amphoteric oxides?

pH has little to no effect on the solubility of salts whose anion is the conjugate base of a stronger weak acid or a strong acid.

The equilibrium constant expression for the dissolution of calcium phosphate is _____.

The equilibrium constant for the formation of a complex ion from a hydrated metal ion is called the _____.

Which of the following cations is most likely to form acid-insoluble sulfides?

Cu(II) forms the complex ion [Cu(H2O)6]2+ through equilibrium reactions in which ammonia replaces water in a stepwise manner. If log K1 = 4.78, log K2 = 2.36, log K3 = -0.76, and log K4 = -0.53, what is its Kf?

Differentiate between acidic, basic, and amphoteric oxides.

If the Ksp of calcium oxalate monohydrate at 42∘C42 ^ { \circ } \mathrm { C }42∘C is 6.45×10-8, what is its solubility in water at the same temperature?

Explain the effect of the formation of complex ions on solubility with an example.

If the Ksp for AgCl is equal to 4.65×10-9 and the Kf for AgCl2−\mathrm { AgCl } _ { 2 } ^ { - }AgCl2−​ is equal to 8.7×105 at 35∘C35 ^ { \circ } \mathrm { C }35∘C , what is the solubility of AgCl in 1.0 M KCl solution, ignoring the formation of any complex ions?

Explain the purpose of adding complexing agents in laundry detergents.

If the Ksp for zinc carbonate (ZnCO3) is 1.46×10-10 at 25∘C25 ^ { \circ } \mathrm { C }25∘C , what is its aqueous solubility in terms of the molarity of ions produced in solution?

If the Ksp of calcium sulfate (CaSO4) at 25.0∘C25.0 ^ { \circ } \mathrm { C }25.0∘C is 4.93×10-5, what is its solubility in 0.200M CaCl2?

The common ion effect usually increases the solubility of a sparingly soluble salt.

A(n) _____ is a long, hollow spire of limestone that grows down from the ceiling in caves.

If 20.0 g of Cu(NO3)2.6H2O is added to 750mL of 1.00M aqueous ammonia, what is the equilibrium concentration of Cu2+ (aq) ? The complex formed is [Cu(NH3)4]2+\left[ \mathrm { Cu } \left( \mathrm { NH } _ { 3 } \right) _ { 4 } \right] ^ { 2 + }[Cu(NH3​)4​]2+ Given Kf = 2.1×1013.

The equilibrium constant expression for the dissolution of lead (II) chloride is _____.

Introduction to Chemistry

Molecules, Ions, and Chemical Formulas

Chemical Reactions

Reactions in Aqueous Solution

Energy Changes in Chemical Reactions

The Structure of Atoms

The Periodic Table and Periodic Trends

Ionic Versus Covalent Bonding

Molecular Geometry and Covalent Bonding Models

Gases

Liquids

Solids

Solutions

Chemical Kinetics

Chemical Equilibrium

Aqueous Acidbase Equilibriums

Chemical Thermodynamics

Electrochemistry

Nuclear Chemistry

Periodic Trends and the S-Block Elements

The P-Block Elements

The D-Block Elements

Organic Compounds

Filters

A(n) _____ bond holds together undissociated electrolytes, such as C₆H₅CO₂H.

If the K_spfor Ca₃(PO₄)₂ at $30 ^ { \circ } \mathrm { C }$ is 6.47×10^-32, what is the aqueous solubility of Ca₃(PO₄)₂in terms of the molarity of ions produced in solution?

Cu(II) forms the complex ion [Cu(H₂O)₆]²⁺through equilibrium reactions in which ammonia replaces water in a stepwise manner. If log K₁ = 4.78, log K₂ = 2.36, log K₃ = -0.76, and log K₄ = -0.53, what is its K_f?

If the K_spof calcium oxalate monohydrate at $42 ^ { \circ } \mathrm { C }$ is 6.45×10^-8, what is its solubility in water at the same temperature?

If the K_sp for AgCl is equal to 4.65×10^-9 and the K_f for $\mathrm { AgCl } _ { 2 } ^ { - }$ is equal to 8.7×10⁵ at $35 ^ { \circ } \mathrm { C }$ , what is the solubility of AgCl in 1.0 M KCl solution, ignoring the formation of any complex ions?

If the K_sp for zinc carbonate (ZnCO₃) is 1.46×10^-10 at $25 ^ { \circ } \mathrm { C }$ , what is its aqueous solubility in terms of the molarity of ions produced in solution?

If the K_sp of calcium sulfate (CaSO₄) at $25.0 ^ { \circ } \mathrm { C }$ is 4.93×10^-5, what is its solubility in 0.200M CaCl₂?

If 20.0 g of Cu(NO₃)₂.6H₂O is added to 750mL of 1.00M aqueous ammonia, what is the equilibrium concentration of Cu²⁺(aq) ? The complex formed is $\left[ \mathrm { Cu } \left( \mathrm { NH } _ { 3 } \right) _ { 4 } \right] ^ { 2 + }$ Given K_f = 2.1×10¹³.