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chem

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A typical party balloon when inflated has a volume of 7.3 L. How many moles of helium are in the balloon if the pressure of helium is 1.2 atm and the temperature is 20.7 °C? Take the value of R to be 0.08206 L-atm/mol-K.

  • chem -

    Use PV = nRT
    Remember T must be in kelvin.

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