Mole Concept

Chemistry Level 3

\(\text{105 ml}\) of pure water at \(4^{\circ}C\) saturated with \(\ce{NH3}\) gas yielded a solution of density \(\text{0.9 g ml}^{-1}\) and containing \(\text{ 30 %} \ce{NH3}\) by mass. Let the volume of \( \ce{NH3}\) solution resulting be \(\text{A ml}\) and the volume of \( \ce{NH3}\) gas at \(4^{\circ}C\) and \(\text{775 mm } \ce{Hg}\) pressure used to saturate water be \(\text{B litre}\). Find \(\text{A+B}\)

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