Atomic mass of carbon is approximately 12g, and the mass of carbon dioxide (from you) is indicated as 132 g.
CO2 means that 1 mole of carbon to 2 moles of oxygen would equal your amount of grams; therefore, oxygens atomic mass is 16 (16 x 2 = 32)
(C) 12 + (O*2) 32 = 44 g.mol
132 g (CO2) divided by 44 = 3 which would mean that there would be
3*12 = 36 Carbon g.mol in 132 g
However to find grams
Have to use this calculation:
n = m/Mr (moles = mass/molecular mass)
We know there are 3 moles of C in 132 grams of CO2 and that 3 x 12 (molecular mass of one mole of carbon) = 36
3 moles = m/36 g.mol
To find mass rearrange
Moles x molar mass = grams
3 mol x 36 g.mol = 108 grams of Carbon
108 grams of carbon in 132 grams of CO2
Hope that helps :)
