Question

What is the molecular formula of a compound that has the empirical formula \( \text{CH}_2\text{O} \) and a molar mass of 90 g/mol?

• A. \( \text{C}_3\text{H}_6\text{O}_3 \)
• B. \( \text{C}_2\text{H}_4\text{O}_2 \)
• C. \( \text{C}_4\text{H}_8\text{O}_4 \)
• D. \( \text{C}_3\text{H}_6\text{O}_2 \)

Hint:

To find the molecular formula from the empirical formula, compare the molar mass of the compound with the molar mass of the empirical formula and multiply accordingly.