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Two gases A and B having molecular weigh...

Two gases A and B having molecular weight 60 and 45 respectively are enclosed in a vessel. The weight of A is 0.5 g and that of B is 0.2 g. The total pressure of the mixture is 750 mm. Calculate the partial pressure (in mm) of gas A.

Text Solution

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Mole of `A = (0.50)/(60) = 0.0083`
Mole of B `= (0.20)/(45) = 0.0044`
Total mole = 0.0127
Total pressure = 750 mm.
Partial pressure of `A = ("moles of A")/("total moles") xx "total pressure"`
`= (0.0083)/(0.0127) xx 750 = 490 mm`.
Partial pressure of B `= ("0.0044)/(0.0127) xx 750 = 260 mm`
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  • Two gases A and B have molecular weight 60 and 45. 0.6 g of A and 0.9 g of B are mixed in a closed vessel. Total pressure is 720 mm. The partial pressure of A is

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