Question

which of the following will have the lowest freezing point​

Answer 1

Answer:

ANSWER

ΔT

f

is directly proportional to the number of the particles of solute.

Here among all given solute, the particles of 0.2 M Na

2

SO

4

are highest in number.

As 0.2 mol of Na

2

SO

4

dissociates to give 0.4 mol of Na

+

and 0.2 mol of SO

4

2−

Hence total moles in 1 L of solution of Na

2

SO

4

is 0.6 moles. ( after dissociation)

Whereas others have lesser moles of ions in solutions.

Hence the 0.2 M Na

2

SO

4

has the lowest freezing point due to the highest moles of ions in solution.

Explanation:

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Answer 2

0.1m na2so4

please give the options.........