At solution containing 12.5 g of non - electrolyte substance in 175 g of water gave boiling point elevation of 0.70 K. Calculate the molar mass of the substance. Molal elevation constant `(K_(b))` for water `"0.52 K kg mol"^(-1)`?

Answer

`53.06 g mol^(-1)`

Explanation

`M_(B) = (0.52 xx 12.5 xx 1000)/(0.70 xx 175) = 53.06`