State temperature of the mixture is and the total pressure

Reference no: EM13214364

A volume of 18.0 L contains a mixture of 0.250 mol N2 , 0.250 mol O2 , and an unknown quantity of He . The temperature of the mixture is 0? , and the total pressure is 1.00 atm . How many grams of helium are present in the gas mixture? Mass of He =?

Reference no: EM13214364

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