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2.01 x 10^23 molecules 2.01 x 10^23/6.022*10%23 0.334 mol The volume of 1 mol of gas at STP is 22.4 L, so 0.334 moles takes 7.48 L P*V/T const so V V0*(T/T0)*(P0/P) 2.5 (313/273) 1.0/2.0 1.4 L
Mon, 06 Feb 2012 08:32:48 GMT