An organic compound contain 69% carbon and 4.8% hydrogen, the remaining being oxygen. Calculate the masses of carbon dioxide and water produced when 0.20g of this substance is subjected to complete combustion.
Calculation of mass of CO2 produced:
Mass of compound =0.20g
%C =12 x C
69=12*mass of CO2 formed*100/44*0.2
Mass of CO2 formed =69*44*.2/12*100
= 0.506g
Similarly,
% H =2* mass of H2Oformed*100/18*mass of compound
4.8=2* mass of H2Oformed*100/18* 0.2
Mass of H2Oformed =4.8*18*0.2/2*100
=0.0864g