Which of the following statements are fundamentally TRUE regarding the Dumas method for the quantita — Qualitative and Quantitative Analysis Chemistry Question

💡 Solution & Explanation

In the Dumas method, N is converted to $N_2$ gas and collected in a nitrometer over $KOH$ (which absorbs $CO_2$ and $H_2O$). Option D is incorrect because the collected gas is saturated with water vapor. Therefore, the aqueous tension must be SUBTRACTED from the total atmospheric pressure to find the pressure of the dry $N_2$ gas ($P_{dry} = P_{total} - \text{Aqueous Tension}$).