   # An organic compound has an empirical formula CH 2 O and a molar mass of 180 g/mol. What is its molecular formula? (a) CH 2 O (b) C 6 H 12 O 6 (c) C 2 H 4 O 2 (d) C 5 H 10 O 5 ### Chemistry & Chemical Reactivity

9th Edition
John C. Kotz + 3 others
Publisher: Cengage Learning
ISBN: 9781133949640

#### Solutions

Chapter
Section ### Chemistry & Chemical Reactivity

9th Edition
John C. Kotz + 3 others
Publisher: Cengage Learning
ISBN: 9781133949640
Chapter 2.10, Problem 2RC
Textbook Problem
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## An organic compound has an empirical formula CH2O and a molar mass of 180 g/mol. What is its molecular formula? (a) CH2O (b) C6H12O6 (c) C2H4O2 (d) C5H10O5

Interpretation Introduction

Interpretation: The molecular formula of given compound is to be identified from the given options.

Concept introduction:

• Equation for finding Molecular formula from the empirical formula,

Molecular formula=MolarmassEmpiricalformula mass × Empirical formula

### Explanation of Solution

The empirical formula of compound is CH2O .

The empirical formula mass of compound is 30.026g.

The molar mass of compound is 180g.

Equation for finding Molecular formula from the empirical formula,

Molecular formula=MolarmassEmpiricalformula mass × Empirical formula

Therefore,

The molecular formula of compound is,

Molecular formula=180g30

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