What is the density of carbon dioxide gas at −25.2°C and 98.0 kPa?
A)0.232 g/L
B)0.279 g/L
C)0.994 g/L
D)1.74 g/L
E)2.09 g/L

Question

Quizplus · Accepted Answer

The density of a gas can be calculated using the ideal gas law rearranged to find density: $ \text{Density} = \frac{PM}{RT} $. For CO2, $ M = 44.01 \, \text{g/mol} $. Convert temperature to Kelvin: $ T = -25.2 + 273.15 = 247.95 \, \text{K} $. Use $ R = 8.314 \, \text{J/mol·K} $ and convert pressure to Pa: $ 98.0 \, \text{kPa} = 98000 \, \text{Pa} $. Plug these values into the formula to find the density, which is approximately 2.09 g/L.

What Is the Density of Carbon Dioxide Gas at −25