Question

A compound has an empirical formula of

CH20. What is its molecular formula, if its
molar mass is 180 g/mol?
(C=12.01 amu, H=1.008 amu, O=16.00 amu)

Answer 1

C6H12O2

Step-by-step explanation:

Scale up the empirical formula by a factor of 6.

C6H12O2 (glucose)

Answer 2

C6H12O6

Step-by-step explanation:

Molar mass of empirical formula:

12.01+2*1.008+16=30.026

Divide molar mass of molecular formula by 30.026

180/30=~6

Scale up the empirical formula by a factor of 6.

C6H12O2 (glucose)