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Chemistry

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Mass of flask = 81.39g
Mass of flask and water = 104.26g
Mass of flask ,water,and solute =129.53
Mass of solute= 25.27g
Boiling point of water =98.7C
Boiling point of solution =109.5C
Calculate the molecular weight of the solute using the data.
M=Kb*r solute/delta Tb*kg solvent
kb=0.512C/m

  • Chemistry -

    delta T = Kb*molality
    Solve for molality.

    molality = moles/kg solvent
    Solve for moles

    moles = grams/molar mass
    solve for molar mass.

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