The compound chloral hydrate, known in detective stories as knockout drops, is composed of 25.52%C, 1.83% H, 64.30% Cl, and 19.35% O by mass and has a molar mass of 165.4g/mol.
(a) What is the empirical formula of this substance?
(b) What is the molecular formula of this substance?
(c) Draw the Lewis structure of the molecule, assuming that the Cl atoms bond to a single C atom and that there are a C-C bond and C-O two bonds in the compound.