Question

the normal boiling point of ethyl acetate is 77.06°C .A solution of 50 g of a non volatile solute is 150 g of ethyl acetate boils at 84.27°C . Evaluate the molar mass of solute if Kb for ethyl acetate is 2.77°C kg mol-1​

Answer 1

Answer:  

Δ t = 84.27-77.06

 

= 7.21

 

Δt= k m

m= 2.77 * 50/7.21*150

= 59.8 g

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