Problem 40
The molar solubility of barium phosphate in water at \(25^{\circ} \mathrm{C}\) is \(1.4 \times 10^{-8} \mathrm{~mol} \mathrm{~L}^{-1}\). What is the value of \(K_{\mathrm{sp}}\) for this salt?
Problem 46
At \(25^{\circ} \mathrm{C},\) the value of \(K_{\mathrm{sp}}\) for \(\mathrm{AgCN}\) is \(6.0 \times 10^{-17}\) and that for \(\mathrm{Zn}(\mathrm{CN})_{2}\) is \(3 \times 10^{-16} .\) In terms of grams per \(100 \mathrm{~mL}\) of solution, which salt is more soluble in water?
Problem 49
Calcium sulfate is found in plaster. At \(25^{\circ} \mathrm{C}\) the value of \(K_{\mathrm{sp}}\) for \(\mathrm{CaSO}_{4}\) is \(4.9 \times 10^{-5}\). What is the calculated molar solubility of \(\mathrm{CaSO}_{4}\) in water?
Problem 50
Chalk is \(\mathrm{CaCO}_{3},\) and at \(25^{\circ} \mathrm{C}\) its \(K_{\mathrm{sp}}=3.4 \times 10^{-9}\) What is the molar solubility of \(\mathrm{CaCO}_{3}\) ? How many grams of \(\mathrm{CaCO}_{3}\) dissolve in \(0.100 \mathrm{~L}\) of aqueous solution? (Ignore the reaction of \(\mathrm{CO}_{3}^{2-}\) with water.)
Problem 52
The molar solubility of \(\mathrm{Ag}_{2} \mathrm{CrO}_{4}\) in \(0.10 \mathrm{M} \mathrm{Na}_{2} \mathrm{CrO}_{4}\) is \(1.7 \times 10^{-6} \mathrm{M}\). What is the value of \(K_{\mathrm{sp}}\) for \(\mathrm{Ag}_{2} \mathrm{CrO}_{4} ?\)
Problem 53
Copper(I) chloride has \(K_{\mathrm{sp}}=1.7 \times 10^{-7} .\) Calculate the molar solubility of copper(I) chloride in (a) pure water, (b) \(0.0200 \mathrm{M} \mathrm{HCl}\) solution, (c) \(0.200 \mathrm{M} \mathrm{HCl}\) solution, and (d) \(0.150 \mathrm{M} \mathrm{CaCl}_{2}\) solution.
Problem 54
Mercury(I) chloride has \(K_{\mathrm{sp}}=1.4 \times 10^{-18} .\) Calculate the molar solubility of mercury(I) chloride in (a) pure water, (b) \(0.010 M \mathrm{HCl}\) solution, (c) \(0.010 \mathrm{M} \mathrm{MgCl}_{2}\) solution, and (d) \(0.010 \mathrm{M} \mathrm{Hg}_{2}\left(\mathrm{NO}_{3}\right)_{2}\) solution.
Problem 59
Calculate the molar solubility of \(\mathrm{Ag}_{2} \mathrm{CrO}_{4}\) at \(25^{\circ} \mathrm{C}\) in (a) \(0.200 \mathrm{M} \mathrm{AgNO}_{3}\) and (b) \(0.200 \mathrm{M} \mathrm{Na}_{2} \mathrm{CrO}_{4}\). For \(\mathrm{Ag}_{2} \mathrm{CrO}_{4}\) at \(25^{\circ} \mathrm{C}, K_{\mathrm{cn}}=1.1 \times 10^{-12}\)
Problem 68
Would a precipitate of silver acetate form if \(22.0 \mathrm{~mL}\) of \(0.100 \mathrm{M} \mathrm{AgNO}_{3}\) were added to \(45.0 \mathrm{~mL}\) of \(0.0260 \mathrm{M}\) \(\mathrm{NaC}_{2} \mathrm{H}_{3} \mathrm{O}_{2}\) ? For \(\mathrm{AgC}_{2} \mathrm{H}_{3} \mathrm{O}_{2}, K_{\mathrm{sp}}=2.3 \times 10^{-3}\)
Problem 69
Would a precipitate of silver acetate form if \(22.0 \mathrm{~mL}\) of \(0.100 \mathrm{M} \mathrm{AgNO}_{3}\) were added to \(45.0 \mathrm{~mL}\) of \(0.0260 \mathrm{M}\) \(\mathrm{NaC}_{2} \mathrm{H}_{3} \mathrm{O}_{2}\) ? For \(\mathrm{AgC}_{2} \mathrm{H}_{3} \mathrm{O}_{2}, K_{\mathrm{sp}}=2.3 \times 10^{-3}\)
