A volume of 190.0 ml of was collected in a jar over water at some temperature, water level inside and outside the jar standing at the same height. If barometer reads 740 mm Hg and aqueous tension at t

Question

A volume of 190.0 ml of $N_2$ was collected in a jar over water at some temperature, water level inside and outside the jar standing at the same height. If barometer reads 740 mm Hg and aqueous tension at the temperature of the experiment is 20 mm Hg, the volume of the gas at 1 atm pressure and at the same temperature would be

Prashant Kotian · Accepted Answer

Correct answer: B. Dry nitrogen pressure P1 = 740 - 20 = 720 mm Hg . Using Boyle's law: P1*V1 = P2*V2 => 720 * 190 = 760 * V2 => V2 = 180.0 ml .

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