What is the percent by mass of H in ethyl

Question

alcohol (C2H6O)? The molecular weight of carbon is 12.0107 g/mol, of hydrogen
1.00794 g/mol, and of oxygen 15.9994 g/mol.
Answer in units of % Your answer must be
within ± 0.1%

Answer 1

%H = (6*atomic mass H/molar mass C2H6O)*100 = ?