In Dumas' method, the evolved gas mixture is passed through an aqueous solution of . What is the pri — Practical Organic Chemistry and Purification Chemistry Question

💡 Solution & Explanation

During the Dumas method, combustion produces $CO_2$, $H_2O$, and free $N_2$. The gaseous mixture is collected over an aqueous solution of potassium hydroxide ($KOH$). The $KOH$ completely absorbs the $CO_2$ and condenses the $H_2O$, leaving only the volume of $N_2$ gas to be measured.