Chemisty

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195 g of water containing magnesium chloride boils at 102.5 celcuis. what mass of salt is needed?

  • Chemisty -

    Let me check you work on this. The bp elevation is 2.5C

  • Chemisty -

    the answer is 30.1 grams magnesuim chloride but i don't kknow how to get to the answer

  • Chemisty -

    bpeleveation=m*constant
    m=2.5/1.86

    now m=moles/kgwater=moles/.195
    moles=mass/formulamassMgCl2

    mass=formulamass*.195*2.5/1.85

    check all that math.

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