What Is the Density of Carbon Dioxide at STP?

What Is the Density of Carbon Dioxide at STP?

The density of carbon dioxide at STP is 1.964 grams per liter (g/L). One mole of an ideal gas at standard temperature and pressure has the volume 22.4 liters. The mass of the ideal gas can be calculated using its molecular weight: density = molar mass/molar volume.

The molar mass of carbon dioxide is 44.01 grams. The density of carbon dioxide is 44.01/22.4, which is equal to 1.964 g/L. The values of standard temperature and pressure are 273 Kelvin and one atmosphere, respectively. If the gas is not an ideal gas, the volume of a gas at other temperatures and pressures is calculated using the Vander Waals’ equation, PV=nRT.