The distribution coefficient, k , 10 for compound y. what weight of compound y would be removed from a solution of 4.0 g of y in 100 ml water by a single extraction with 100 ml of ether?

Answer : The weight of compound y would be removed is  3.6363 g.

Solution :  Given,

Distribution coefficient, K = 10

Volume of ether (organic layer) = 100 ml

Volume of water (aqueous layer) = 100 ml

Total Weight of material dissolved = 4 g

Formula used :

Where,

'O' repersent for organic layer and 'aq' repersent for aqueous layer.

and are the concentration of organic solution and the concentration of aqueous solution respectively.

and are the weight of material dissolved in each organic and aqueous layer respectively.

and   are the volume of organic and aqueous layer respectively.

Let, the weight of compound y removed ''  is 'X' gram.

= X gram

= Total weight of material - weight of compound y removed = 4 - X gram

Now put all the values in above formula,we get

10=

Rearranging the terms, we get the value of X, as

X = 3.6363 g

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