Chapter 17, Problem 17.89P

Interpretation Introduction

Interpretation:

When $\text{0}\text{.100 mol}$ of ${\text{CaCO}}_{\text{3(s)}}$ and $\text{0}\text{.100 mol}$ of ${\text{CaO}}_{\text{(s)}}$ are placed in an evacuated sealed $\text{10}\text{.0-L}$ container and heated to $\text{385 K}$, ${\text{P}}_{{\text{CO}}_{\text{2}}}\text{= 0}\text{.220 atm}$ after equilibrium is established:

  ${\text{CaCO}}_{\text{3(s)}}\rightleftharpoons {\text{CaO}}_{\text{(s)}}{\text{+ CO}}_{\text{2(g)}}$

An additional $\text{0}\text{.300 atm}$ of ${\text{CO}}_{\text{2(g)}}$ is pumped in.  The total mass of ${\text{CaCO}}_{\text{3}}$ in grams after equilibrium is re-established has to be calculated from the given information.

Concept Introduction:

Ideal gas equation:

Mass of a compound can be calculated using ideal gas equation.

  $\begin{array}{l}\text{PV = nRT}\\ \\ \text{n = }\frac{\text{PV}}{\text{RT}}\\ \\ \text{where,}\text{P = pressure}\\ \\ \text{V = volume}\\ \\ \text{T = temperature}\\ \\ \text{R = universal gas constant}\\ \\ \text{n = number of moles}\end{array}$