A compound contains element X (at. wt. 10) and element Y (at. wt. 20). Empirical formula is: | Mole Concept and Some Basic Concepts of Chemistry — Chem-Mantra

Question

A compound contains $50\%$ element X (at. wt. 10) and $50\%$ element Y (at. wt. 20). Empirical formula is:

Answer: B

💡 Solution & Explanation

$\text{Moles X} = 50 / 10 = 5$; $\text{Moles Y} = 50 / 20 = 2.5$. <br>$\text{Ratio } X:Y = 5 : 2.5 = 2 : 1$. <br>$\text{Formula} = X_2Y$. [19, 20]

💬

Still have doubts about this question?

Send it to our AI chemistry tutor on WhatsApp — gets answered in minutes