Multiple choice Calculate the total number of molecules in 4.4 g of CO2 (g). 6.022 * 10^23 6.022 * 10^22 6.022 * 10^21 6.022 * 10^20 6.022 * 10^29 Reveal answer Fill a bubble to check yourself B Correct answer Explanation No. of moles CO2 = (4.4 / 44) = 0.1 No. of molecules = 0.1 * 6.022 * 10^23 = 6.022 * 10^22, which match with the given option, hence this is a correct option.