Solution of sucrose is prepared by dissolving 34.2 g of it in 1000 g o

1.	Solution of sucrose is prepared by dissolving 34.2 g of it in 1000 g of water. Find out the freezing point of the solution, if Kf of water is 1.86 K/kg/mol? (Molecular mass of sucrose is 342 g/mol).
Answer» ΔT_f= k_f× m = 1.86 K kg mol^-1 × \(\frac{34.2\times1000g\,kg^{-1}}{342g\,mol^{-1}\times\,1000g}\) = 0.186 K T_f= OK – 0.186 K Freezing point of the solution = – 0.186 K

Solution of sucrose is prepared by dissolving 34.2 g of it in 1000 g of water. Find out the freezing point of the solution, if Kf of water is 1.86 K/kg/mol? (Molecular mass of sucrose is 342 g/mol).

Answer»

ΔT_f= k_f× m

= 1.86 K kg mol^-1 × \(\frac{34.2\times1000g\,kg^{-1}}{342g\,mol^{-1}\times\,1000g}\)

= 0.186 K

T_f= OK – 0.186 K

Freezing point of the solution = – 0.186 K

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Solution of sucrose is prepared by dissolving 34.2 g of it in 1000 g of water. Find out the freezing point of the solution, if Kf of water is 1.86 K/kg/mol? (Molecular mass of sucrose is 342 g/mol).

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