Why does benzoic acid form a dimer in benzene and not in water?

Answer 1

Benzene is a non polar solvent with low dielectric constant, whereas water is a polar solvent with high dielectric constant. So water can reduce the interaction between benzoic acid molecules there by preventing them from dimerizing, which cannot be done by benzene

Answer 2

no benzene cannot dissolve in water because of its chemical structure which is non polar in nature. The water molecule is polar. Like dissolves like, since benzene and water are of different polarities they will form distinct layers and not dissolve.

Answer 3

Due to sodium benzoate being have ionic interactions with the water, meaning that it will be ripped apart much faster than the benzoic acid. Although benzoic acid is more likely to have hydrogen bonding with the water as well. It is mainly due to the induced dipole dipole formed.

Answer 4

this is a basic behaviour of solutions.'like dissolves like' polar solvents dissolve polar solutes and non polar dissolves non polar.here salt and water are both polar,but benzene is non polar.

Answer 5

Because benzene is nonpolar in nature while the water is polar

Answer 6

look at functional group

Answer 7

Because benzene has high volatility..