Asked by Jared

195 g of water containing magnesium chloride boils at 102.5 celcuis. what mass of salt is needed?
Answered by bobpursley
Let me check you work on this. The bp elevation is 2.5C
Answered by Jared
the answer is 30.1 grams magnesuim chloride but i don't kknow how to get to the answer
Answered by bobpursley
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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