Chapter 15, Problem 63QAP

Marble is almost pure CaCO₃. Acid rain has a devastating effect on marble statuary left outdoors. Assume that the reaction which occurs is

${\text{CoCO}}_3\left(s\right)+{\text{H}}^{+}\left(aq\right)\to {\text{Ca}}^{2+}\left(aq\right)+{\text{HCO}}_3{}^{-}\left(aq\right)$

Neglecting all other competing equilibria and using Tables 15.1 and 13.2, calculate

(a) K for the reaction.

(b) the molar solubility of CaCO₃ in pure water.

(c) the molar solubility of CaCO₃ in acid rainwater with a pH of 4.00.