Question

A sample of carbon dioxide gas (CO2) contains 6 x 10^22 molecules. How many moles of carbon dioxide does this represent?

Answer 1

1 mol CO2 = 6.022x10^23 molecules of CO2

6x10^22 molecules of CO2 x [1 mole of CO2/6.022x10^23]

= 0.0996 moles of CO2