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Determine the freezing point depression of 2 kg of water when 2 mol salt is added to it. The kf of water is 1.86 degrees C/M. Show all your work.
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5 votes
5 votes
Determine the freezing point depression of 2 kg of water when 2 mol salt is added to it. The kf of water is 1.86 degrees C/M. Show all your work.

User Irina Potapova
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1 Answer

15 votes
15 votes

Answer: The freezing point depression is
image

Step-by-step explanation:

Depression in freezing point is given by:


image


image = Depression in freezing point


image = freezing point constant =
image

m= molality =
image


image


image

Thus freezing point depression is
image

User Marqin
by
3.5k points
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