Question

A sample of a compound containing carbon and oxygen have a mass of 132 g. Experimental procedures showed that 36 g of this sample was carbon and the remaining 64g was oxygen. what is the percentage composition of the compound?

Answer 1

$\%C=$ $36g\over 132g$ $\times 100\%=27.27\%$

$\%O_2=$ $64g\over 132g$ $\times100\%=48.48\%$

$\therefore$ The compound is $27.27\%Carbon$ and $48.48\%Oxygen$ by mass