The boiling a point of benzene is 353.23K. When 1.80 g of a non-volatile solute was dissolved in 90 g of benzene, the boiling point is raised to 354.11 K. Calculate the molar mass of the solute. `K_(b)` for benzene is 2.53 K kg `mol^(-1)`.

Options

A. `58g mol^(-1)`
B. `106 g mol^(-1)`
C. `174 g mol^(-1)`
D. `232 g mol^(-1)`

Answer

A

Explanation

`Delta T_(b)=K_(b).(W_(B))/(M_(B)).(1000)/(W_(A))`