A solution of Palmitic acid (M= 256) in benzene contains 4.24 g of acid per dm3 . When this solution is dropped on a water surface , benzene evaporates and the acid forms a monomolecular layer film of the solid type . If we wish to cover an area of 500cm2 with a mono-layer, what volume of solution should be used ( to be given in ml)? The area covered by one molecule is taken as 0.21nm2
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