no of moles = given mass / molar mass 1=given mass/ 12 (12 is the molar mass of carbon)
given mass of carbon is 12 into 1 which is 12g
co2 contains one atom of carbon and two atoms of oxygen
molar mass of oxygen is 16 no of moles = given mass / molar mass 1=given mass / 32 given mass is 32g
total mass is 12+32 = 44g
- 2=given mass/12 then given mass is 24g and mass of dioxygen is 16g total mass is 24+16=40g