Question

A compound with the empirical formula CH 2 O has a formula mass of 180 g/mol. What is its molecular formula

Answer 1

Empirical formula mass

• 12+2(1)+16
• 28+2
• 30g/mol

Molecular fornula mass:-180g/mol

• n=Molecular formula mass/Empirical formula mass
• m=180/30
• n=6

Molecular formula:-

• n×Empirical formula
• 6(CH_2O
• C_6H_12 O_6