Determine the freezing point of a 3.70 m solution of phenol in benzene. Benzene has a freezing point of 5.5°C and a freezing point depression constant of 5.12°C•kg/mol.

Which equation should you use?

Respuesta :

all 3 answers for edge

b

18.9

-13.4

Explanation:

The freezing point depression is a colligative property. The feezing point of the solution is -13.44°C

What is freezing point depression?

Freezing point depression is a colligative property because it depends on the amount of substance.

Now we have;

Molality of solution= 3.70 m

Normal freezing point of benzene =  5.5°C

Freezing constant of benzene = 5.12°C•kg/mol

ΔT = K m i

ΔT = 5.12°C•kg/mol * 3.70 m * 1

ΔT =  18.944°C

Freezing point of the solution = 5.5°C  - 18.944°C  

= -13.44°C

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