1.

A solution containing 3.3g of a substance in 125g of benzene (b.pt. = 80^@C) boils at 80.66^@C. If K_b for benzene is 3.28 K kg mol l^(-1) the molecular mass of the substance will be:

Answer»

`130.20`
`129.20`
`132.20`
`131.20`

ANSWER :D


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