Question

Asked Jun 6, 2019

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Step 1

Solution for sodium chloride solute :

First we have to calculate the mass of sample.

Step 2

Now we have to calculate the mass of water by using the formula of depression in freezing point.

where,

∆T_{f} = depression in freezing point

T^{o}_{f }= freezing point of pure water

T_{s} = freezing point of solution

m = molality of solution

k_{f} = freezing point constant of water = 1.86 ^{o}C/m

i = Van't Hoff factor for NaCl electrolyte = 2

Step 3

Now putting all the given values in this ...

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