1000 questions solubility product

Question 1

Determine the solubilities of BaCrO₄ and AgCl. (K_sp of BaCrO₄ is 1.2 x 10^-10, K_sp of AgCl is 1.7 x 10^-10)

Question 2

If an excess quantity of $AgI\left(s\right)$ is added to water and allowed to equilibrate, what is the equilibrium concentration of $I^{-}$? (K_sp for AgI is $8.5\times {10}^{-17}$)

Question 3

The K_sp of $AgCl$ at 298K is $1.6\times {10}^{-10}$. Consider a solution that is $1.0\times {10}^{-5}$ M $CaC{l}_2$ and $1.0\times {10}^{-6}$ M $AgN{O}_3$.

Question 4

What is the minimum amount of water required to dissolve 1g of CaSO₄ at 298K? (K_sp for CaSO₄ is 9.1 x 10^-6)

Question 5

The concentration of S^2- in 0.1M HCl solution is 1 x 10^-19M. If 10 mL of this is added to 5mL of 0.04M solution of the following: FeSO₄, MnCl₂, ZnCl₂ and CdCl₂, in which of these solutions precipitation will take place? (K_sp for FeS is 6.3 x 10^-18, K_sp for MnS is 2.5 x 10^-13, K_sp for ZnS is 1.6 x 10^-24, K_sp for CdS is 8.0 x 10^-27)

Question 6

What is the molar solubility of magnesium carbonate in a 0.177 M magnesium acetate solution? (K_sp for MgCO₃ is 6.82 x 10^-6)

Question 7

What is the maximum concentration of equimolar solution of FeSO₄ and Na₂S so that when mixed in equal volumes, there is no precipitation of FeS? (K_sp for FeS is 6.3 x 10^-18)

Question 8

The solubility product of SrCO₃, at 298K is 1.1 x 10^-10 mol² dm^-6. Calculate its solubility in g dm^-3.

Harder

Question 9

The ionisation of benzoic acid is 6.46 x 10^-5 and K_sp for silver benzoate is 2.5 x 10^-13. How many times is silver benzoate more soluble in a buffer of pH 3.19 and 0.1M benzoic acid compared to its solubility in pure water.

Question 10

A solution is 0.0010 M in both Ag⁺ and Au⁺. Some NaCl is added slowly until the solid AgCl just begins to precipitate. What is the concentration of Au⁺ ions at this point? K_sp for AgCl is 1.8 x 10^–10 and for AuCl is 2.0 x 10^–13.