* Density and Molecular Weight: Density is directly related to molecular weight. The heavier the molecule, the denser the gas.
* Carbon Dioxide (CO2): The molecular weight of carbon dioxide is approximately 44 g/mol.
Gases denser than CO2:
* Sulfur Hexafluoride (SF6): Molecular weight of 146 g/mol. This is a very dense gas, often used in electrical equipment.
* Xenon (Xe): Molecular weight of 131 g/mol. A noble gas.
* Krypton (Kr): Molecular weight of 84 g/mol. Another noble gas.
* Radon (Rn): Molecular weight of 222 g/mol. A radioactive noble gas.
* Other heavier gases: There are many other gases with higher molecular weights than CO2, including various hydrocarbons, refrigerants, and industrial gases.
Important Note: The density of a gas can also be influenced by temperature and pressure. At higher temperatures and lower pressures, the density of a gas will decrease.