Question

Octane contains 84.2% carbon. Using this information only, determine the empirical formula of octane.​

Answer 1

Explanation:

Given Carbon is 84.2 % and Hydrogen 15.8 %

Carbon 84.2 / 12 = 7.01 / 7.01 = 1

Hydrogen 15.8/1 = 15.8/7.01 = 2.25

Empirical formula is CH2