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A sample of Nitrogen(N2)& Helium has a volume of 250mL @ 30degrees celsius & a total pressure of 745 mmHg a)If the pressure is 32mmHg what is the partial pressure of the Nitrogen? b) What is the volume of the Nitrogen at STP?

  • chemistry -

    Partial pressures are additive. So, total pressure - partial pressure of Hg = partial pressure of nitrogen.

    Use PV = nRT (using nitrogen's partial pressure) to find volume.

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