The empirical formula of an unknown carbohydrate is determined to be . If its experimental molecular — Mole Concept and Some Basic Concepts of Chemistry Chemistry Question

💡 Solution & Explanation

Step 1: Calculate the Empirical Formula Mass (EFM). $\text{EFM of } CH_2O = 12 + (2 \times 1) + 16 = 30\text{ u}$. Step 2: Determine the multiplying integer ($n$). $n = \frac{\text{Molecular Mass}}{\text{Empirical Formula Mass}} = \frac{120}{30} = 4$. Step 3: Multiply the empirical formula subscripts by $n$. Molecular Formula $= (CH_2O)_4 = C_4H_8O_4$.