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mass= 3.8721g
temperature= 102 degrees Celsius
volume= 156ml
atmospheric pressure= 755.0 mm Hg

calculate the molar mass using the ideal gas law

  • chemistry -

    Use PV = nRT to solve for n = number of moles. Don't forget that T is in Kelvin.

    Then n = grams/molar mass
    You know n and grams, solve for molar mass.

  • chemistry -

    so all the units i have to change is just for temperature and then leave the rest as they are

  • chemistry -

    No. T is in Kelvin.
    P is in atmospheres.
    V is in L.
    Use 0.08206 L*atm/mol*K for R.

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