The density of krypton gas at 0.866 atm and 44.4 °C is ________ g/L.
A)0.0332
B)0.359
C)0.238
D)2.78
E)5.57

Question

Quizplus · Accepted Answer

To find the density of krypton gas, use the ideal gas law rearranged to solve for density: $ \text{Density} = \frac{PM}{RT} $. Here, $ P = 0.866 $ atm, $ M = 83.798 $ g/mol (molar mass of krypton), $ R = 0.0821 $ L·atm/mol·K, and $ T = 44.4 + 273.15 = 317.55 $ K. Plugging in these values gives a density of approximately 2.78 g/L.

The Density of Krypton Gas at 0