Roughly 4% to 5% of what you exhale is carbon dioxide. Assume that 22.4 L is the

Question:

Roughly 4% to 5% of what you exhale is carbon dioxide. Assume that 22.4 L is the volume of 1 mole (6.02 ∙ 1023 molecules) of carbon dioxide and that you exhale 0.5 L per breath.
a) Estimate how many carbon dioxide molecules you breathe out each day.
b) If each mole of carbon dioxide has a mass of 44.0 g, how many kilograms of carbon dioxide do you exhale in a year?