Question: how many atoms of oxygen are in 3 moles of co2?
Answer: Originally Answered: How many O atoms are in 3.0 moles of CO2 ? A mole is 6.022 times 10 to the 23rd power. There are two atoms of oxygen in every carbon dioxide molecule, and there are 3 moles of carbon dioxide; therefore there are 3.6132 times 10 to the 24th power atoms of oxygen in 3 moles of pure carbon dioxide.