What is the freezing point of an aqueous solution that boils at 106.6 ∘c?
express your answer using two significant figures.

The freezing point of solution is

Explanation:

Formula used for elevation in boiling point is,

where,

= change in boiling point

= boiling point constant=

m = molality

Given: Boiling point of solution =

Boiling point of water=

thus

Formula used for lowering in freezing point is,

where,

= change in freezing point

= freezing point constant  =

m = molality

Freezing point of water=

specific gravity is the density of a substance divided by the density of water. since (at standard temperature and pressure) water has a density of 1 gram/cm3, and since all of the units cancel, specific gravity is usually very close to the same value as density

so "c" is the answer

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