G-Chem problem

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meant2be10

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This problem is from Crack DAT G-Chem...is their solution wrong?

The problem is: What is the change in boiling point of an acetone solution if 100g of acetone is added? Kb=1.72degC/1kg acetone

The solution says the change in temp would be 17.2 degrees, but shouldn't the answer be .172degrees? (1.72*100g/1000g=.172)
 
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