A `5%` solution of cane sugar is isotonic with `0.877%` solution of urea. Calculate the molecular mass of urea if the molecular mass of cane sugar is `342`.

Answer

`59.99 mol^(-1)`

Explanation

`(5 xx RT)/(342 xx 0.1) = (0.877 xx RT)/(M xx 0.1)`
`M = 59.99 g mol^(-1)`