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A solution of unhydrous dextrose (m.w 180) contain 25g in 500ml of water.calculate the freezing point of the solution

A solution of unhydrous dextrose (m.w 180) contain 25g in 500ml of water.calculate the freezing point of the solution

Grade:12

1 Answers

Sanskar
37 Points
one year ago
Since anhydrous dextrose is added to water to form the given solution, that means there will be a depression in the freezing point of water. Thus, instead of water being frozen at 0OC, it will now freeze at even a lower temperature.
One can thus calculate the depression in freezing point as \Delta Tf= 1000*k/m
where m is the molality of the solution.
On calculating the above value and subtracting it fom 0OC, the answer to the above question can be obtained.

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