Question

What is the freezing-point depression of water in a solution of 100g of sucrose, C12 H22 O11, and 500g of water? (Molar freezing point depression constant for water is -1.86°C/m.)

Answer 1

molality= molesSucrose/kgwater
= 100/(342*.5)=.58

deltaTf= m*(-1.86)=-1.09C