A compound of molecular weight 70.1 has the following composition: Carbon 85.63% and hydrogen 14.37%. What is the empirical formula? What is the molecular formula?

Answer 1

70.1*.8563/12 = 5.00 moles C
70.1*.1437/1 = 10.07 moles H

empirical CH2 has mol wt 14

70.1/14 = 5, so

molecular formula is C5H10