Find the value of in the formula if the weight loss on heating is 62.9%. | Mole Concept and Some Basic Concepts of Chemistry — Chem-Mantra

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]

💬

Still have doubts about this question?

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