A solution of palmitic acid (molar mass = 256 g mol-1) in benzene contains 4.24 g of…
CHEMISTRY · Subjective · A Level · Chemistry · Amount of substance · Amount of substance
Problem
A solution of palmitic acid (molar mass = 256 g mol-1) in benzene contains 4.24 g of acid per litre. This solution on pouring on water surface forms a monomolecular level of palmitic acid as benzene gets evaporated. If 500 cm2 area of water surface is to be covered by a monolayer, what volume of solution in benzene is needed? Area covered by one molecule of palmitic acid is 0.21 nm2.