Final answer:
A mole of CO2 refers to 6.022 x 10^23 molecules of carbon dioxide, which contains a specific number of carbon and oxygen atoms. It also has a molar mass of approximately 44 grams and occupies a volume of 22.4 liters at standard temperature and pressure.
Step-by-step explanation:
A mole is a unit of measurement used in chemistry to represent a large number of particles. In the case of carbon dioxide (CO2), a mole of CO2 refers to 6.022 x 1023 molecules of CO2. This means that there are 6.022 x 1023 carbon atoms and 2 x 6.022 x 1023 oxygen atoms in one mole of CO2.
Additionally, a mole of CO2 can also be described in terms of its mass. The molar mass of CO2 is approximately 44 grams per mole, which means that one mole of CO2 weighs 44 grams.
Finally, a mole of CO2 can also be represented in terms of its volume. According to the ideal gas law, at standard temperature and pressure, one mole of any gas occupies a volume of 22.4 liters. Therefore, one mole of CO2 occupies a volume of 22.4 liters at standard temperature and pressure.