Bromoform has a normal has freezing point of `7.734^(@)C` and `K_(f)=14.4^(@)C// m`.a solution of 2.60 g of an unknown substance in 100 g of freezes at `5.43^(@)C`. What is the molecules mass of the unknown substance ?
A
16.25
B
162.5
C
100
D
none of these
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The correct Answer is:
b
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