What is the percent by mass of C in methyl

acetate (C3H6O2)? 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 %.

Please work it out for me so I totally understand it. Thanks!

1 answer

1. figure the molecular mass of C3H6O2

Then, the percent of C

percent= 3*12.01/molmass * 100