Chapter 22, Problem 22.68SP

Interpretation Introduction

Interpretation:

Kilograms of ${\text{CaH}}_{\text{2}}$ needed is to be calculated.

Concept introduction:

The given problem can be solved by calculating number of moles using ideal gas equation and then calculating the mass.
Ideal gas equation is:
$\text{PV = nRT }$

where P is the pressure, $\text{V}$ is the volume, n is the number of moles and $\text{R}$ is the ideal gas constant and $\text{T}$ the temperature.


Given:

Pressure is $\text{1}\text{.00}\text{atm}$

Volume of hydrogen gas is $\text{2}{\text{.0×10}}^{\text{5}}\text{L}$

Temperature is $\text{25}\text{.0}{}^{\text{o}}\text{C}$