Find the value of in the formula if the weight loss on heating is 62.9%. — Mole Concept and Some Basic Concepts of Chemistry Chemistry Question
Question
Find the value of $n$ in the formula $Na_2CO_3 \cdot nH_2O$ if the weight loss on heating is 62.9%.
Answer: 10
💡 Solution & Explanation
$\frac{18n}{106 + 18n} = 0.629 \Rightarrow 18n = 66.67 + 11.32n$. <br>$6.68n = 66.67 \Rightarrow n \approx 10$. [3, 22]
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