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March 28, 2017

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A 1.25g sample of dry ice is added to a 750ml flask containing nitrogen gas at a temperature of 25.0 C and a pressure of 725mmHg. The dry ice is allowed to sublime (convert from solid to gas) and the mixture is allowed to return to 25.0C. What is the total pressure in the flask?

  • chemistry - ,

    figure the pressure due to the dry ice alone, then add it to the original pressure.

    dryicepressure= moleCO2*R*T/V

    molesCO2=1.25/40

  • chemistry - ,

    molar mass of CO2 is 44.01 g/mol

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