Assignment:
Q1. Given the following table of Ksp values, determine which compound listed has the smallest solubility compound Ksp
CdCO3 5.2 x 10-12
Cd(OH)2 2.5 x 10-14
AgI 8.3 x 10-17
Fe(OH)3 4 x 10-38
ZnCO3 1.4 x 10-11
a. Cd(OH)2
b. AgI
c. Fe(OH)3
d. ZnCO3
e. CdCO3
Q2. The solubility of which one of the following will not be affected by the pH of the solution?
a. Na3PO4
b. MnS
c. NaF
d. AlCl3
e. KNO3
Q3. Calculate the molar solubility of silver carbonate (Ksp = 6.15 x 10-12).
a. 1.15 x 10-4
b. 6.20 x 10-7
c. 2.48 x 10-6
d. 2.33 x 10-4
e. 1.24 x 10-6
Q4. What is the molar solubility of PbS? Ksp(PbS) = 8.0 x 10-28
a. 8.0 x 10-28
b. 6.4 x 10-55
c. 4.0 x 10-28
d. 8.0 x 10-19
e. 2.8 x 10-14
Q5. The solubility of Mn(OH)2 is 2.2 x 10-5 mol/L. What is the Ksp of Mn(OH)2?
a. 2.2 x 10-5
b. 4.8 x 10-10
c. 4.3 x 10-14
d. 2.1 x 10-14
e. 1.1 x 10-14
Q6. What is the maximum concentration (in M) of chloride ions in a solution that contains 0.100 M Pb2+? The Ksp for lead(II) chloride is 1.0 x 10-4.
a. 0.058
b. 0.029
c. 0.032
d. 0.0.0010
e. 1.0 x 10-4