A 824.5 ml sample of a gas at 5.2C and 825 mm Hg is cooled to -175C and a volume of 342.3 ml. What will be the new pressure of this gas sample in kPa?

what is the volume occupied by 40 grams of argon gas (ar) at standard conditions? what volume, in liters, is occupied by 1.5 x 1023 

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