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the observed melting point of camphor is often low use the concept of freezing point depression...

the observed melting point of camphor is often low use the concept of freezing point depression to explain this.

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Answer #1

The value of Kf for the camphor is very high i.e. 39.7 degree Celsius/molal, hence if the number of moles are less in number, there will be more depression in the freezing point of Camphor.

Assuming even 1M solution will have depression in freezing point of 39.7 degree celsius

The actual melting point of pure camphor is 179C, but with even one molal solution it will decrease to 139C, hence the observed melting point is low due to the very high value of Kf of camphor

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