Chapter 15, Problem 103E

Consider the reaction:

${\text{CaCO}}_3\rightleftharpoons \text{CaO}(s)+{\text{CO}}_{\text{2}}(g)$

A sample of ${\text{CaCO}}_3$ is placed into a sealed 0.500-L container and heated to 550 K at which the equilibrium constant is $4.1\times {10}^{-4}$. When the reaction has come to equilibrium, what mass of solid CaO is in the container? (Assume that the sample of ${\text{CaCO}}_{\text{3}}$ was large enough that equilibrium could be achieved.)