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1.what percent of sample nitrogen must be allowed to escape if its temperature ,pressure and volume are to be changed for 220C,3atm&1.65L to 110C,.7atm&1L? 2.a quantity of gas is collected in a graduated tube over mercury.the volume of gas at 20C is 50 ml calculate vol. at STP (i)if level of mercury in tube is 100mm above the outside mercury level if level of mercury in tube is 100mm below the outside mercury level in both cases barometer reads 750 torr

1.what percent of sample nitrogen must be allowed to escape if its temperature ,pressure and volume are to be changed for 220C,3atm&1.65L to 110C,.7atm&1L?


2.a quantity of gas is collected in a graduated tube over mercury.the volume of gas at 20C is 50 ml calculate vol. at STP


(i)if level of mercury in tube is 100mm above the outside mercury level


if level of mercury in tube is 100mm below the outside mercury level


in both cases barometer reads 750 torr

Grade:12

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