A mixture of N2, NO and NO2 in a closed container was analysed by selective…
CHEMISTRY · Subjective · US High School · Chemistry · States of Matter & Gases · States of Matter & Gases
Problem
A mixture of N2, NO and NO2 in a closed container was analysed by selective absorption of the oxides of nitrogen. The initial pressure was 3.0 cm. After treatment with water, which absorbs NO2, the pressure left was 2.42 cm. A ferrous sulphate solution was then shaken with residual gas mixture to absorb NO after which the pressure was 1.24 cm. If vapour pressure of H2Ov in gaseous mixture after shaking with H2O and in FeSO4 solution were 0.2 cm and 0.18 cm respectively calculate the mole % of gases in initial mixture. Assume all measurements are made at same P and T.