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A mixture of hydrogen and oxygen gas weighing `0.76g` has volume 2 liter temperature `300K` and pressure `100 kPa` Calculate masses of hydrogen and oxygen in gas mixture Assume ideal nature . |
Answer» `V =2litre = 2 xx 10^(-3) m^(3),` `P =100kPa = 100 xx 10^(3) Pa` `w_(H_2) + w_(O_2) = 0.76g` Also `n = [n_(H_2) + n_(O_2)] = (PV)/(RT)` ` = (100xx10^(3) xx 2xx 10^(-3))/(8.314 xx 300) = 0.08` or `(w_(H_2))/(2) + (w_(O_2))/(32) = 0.08` or `16w_(H_2) + w_(O_2) = 2.56` By eqns (i) and (ii) `w_(H_2) = 0.12 g, w_(O_2) = 0.64 g` . |
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