Chemistry - Mole Concept Question with Solution | TestHub

$0.27\mathrm{ }\mathrm{g}$of a long chain fatty acid was dissolved in$100{\mathrm{ }\mathrm{c}\mathrm{m}}^3$of hexane.$10\mathrm{ }\mathrm{m}\mathrm{L}\mathrm{ }$of this solution was added dropwise to the surface of water in a round watch glass. Hexane evaporates and a monolayer is formed. The distance from edge to centre of the watch glass is$10\mathrm{ }\mathrm{c}\mathrm{m}$. What is the height of the monolayer?
[Density of fatty acid$=0.9\mathrm{ }\mathrm{g}\mathrm{ }\mathrm{c}{\mathrm{m}}^{-3};\mathrm{\pi }=3]\mathrm{ }$