The empirical formula that contains 120 g of carbon and 30.3 g of hydrogen

Empirical formula is CH₃.

Explanation:

Given dа ta:

Mass of carbon = 120 g

Mass of hydrogen = 30.3 g

Empirical formula = ?

Solution:

Number of gram atoms of C = 120 g / 12 g/mol = 10

Number of gram atoms of H = 30.3 g / 1.008 g/mol = 30.06

Atomic ratio:

C : H

10/10 : 30.06/10

1 : 3.06

C : H = 1 : 3

Empirical formula is CH₃.