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nirvana33 [79]
3 years ago
8

a solution must be at a higher temperature than a pure solvent to boil. what colligative property can be employed to achieve thi

s?
Chemistry
2 answers:
Kazeer [188]3 years ago
6 0

Boiling-point elavation.

zimovet [89]3 years ago
5 0

Answer : The colligative property employed to achieve this can be, Elevation in boiling point.

Explanation :

Elevation in boiling point : It is defined as the temperature or boiling point of a liquid (a solvent) will be higher when the another compound is added. This means that a solution must be at a higher temperature or boiling point than a pure solvent.

For example : When a non-volatile solute (a salt) is added to a pure solvent such as water.

The formula for elevation in boiling point will be,

\Delta T_b=k_b\times m

or,

T_b-T^o_b=\frac{1000\times k_b\times w_2}{w_1\times M_2}

where,

T_b = boiling point of solution

T^o_b = boiling point of pure solvent

k_b = boiling point constant

m = molality

w_2 = mass of solute

w_1 = mass of solvent

M_2 = molar mass of solute

Hence, the colligative property employed to achieve this can be, Elevation in boiling point.

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