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What would be the freezing point of a 1.7 mole aqueous ethylene glycol solution? The freezing point depression constant for water = 1.86 degrees Celsius per mole.


a) 3.2°C

b) – 1.1°C

c) 0.0°C

d) – 3.2°C

Respuesta :

Answer:

The freezing point of a 1.7 mole aqueous ethylene glycol solution is 3.2°C

Explanation:

Moles present in aqueous ethylene glycol solution= m=1.7

Depression constant for water = [tex]K_b[/tex]= 1.8 deg C/m

According to formula  

[tex]T_f=K_b*m[/tex]

[tex]T_f[/tex]=1.8* 1.7

=3.2

Hence the freezing point of aqueous ethylene glycol solution is 3.2°C

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