Chapter 13, Problem 58PE

The vapor pressure of water at $\text{4}0.0°\text{C}$ is $7.34\times {10}^3{\text{N/m}}^{\text{2}}$. Using the ideal gas law, calculate the density of water vapor in $\text{g}/{\text{m}}^{\text{3}}$ that creates a partial pressure equal to this vapor pressure. The result should be the same as the saturation vapor density at that temperature

$\left(\text{51}.\text{1 g}/{\text{m}}^{\text{3}}\right)$.