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Chilukuri Sai Kartik Grade: 12
        

1.5gm of a monobasic acid when disslved in 150g of water lowers Frezing pt by 0.165 degrees celsius.


0.5g of same acid when titrated,after dissolution in water, requires 37.5ml of N/10 alkali.Calculate degree of dissociation of acid(If Kf of water is 1.86)

7 years ago

Answers : (2)

SAGAR SINGH - IIT DELHI
879 Points
										

Dear student,


Freezing point depression can be calculated using the Clausius-Clapeyron equation and Raoult's law. In a dilute ideal solution the freezing point is:


Freezing Pointtotal = Freezing Pointsolvent - ΔTf


where ΔTf = molality * Kf * i


Kf = cryoscopic constant (1.86°C kg/mol for the freezing point of water)


i = Van't Hoff factor









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Sagar Singh


B.Tech, IIT Delhi








6 years ago
Sourabh Dhavala
4 Points
										

The answer is 18.34%. I''m not getting that answer. 

4 years ago
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