1.

A gas at 772 mm Hg and at 35°C occupies a volumeof 6.851.Calculate its volume at STP (Ans:6.167L)

Answer»

P1V1 / (n1T1) = P2V2 / (n2T2)canceling n...P1V1 / T1 = P2V2 / T2rearranging for V2...V2 = V1 x (P1 / P2) x (T2 / T1)

and solving...V2 = 6.85L x (772 mmHg / 760mmHg) x (273.15K / 308.15K) = 6.17L

thank you



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