Question

Why do esters with higher molecular weight not have strong smells

Answer 1

Answer:

Esters with higher relative molecular mass don't have strong smells because they are not volatile and mostly stay in solid or liquid form and have a high boiling point.

Explanation:

• Fragrances reach another person through the sense of smell.
• And, the strength of the fragrances basically depends on the evaporation phenomenon, which is strongly associated with the boiling point.
• Esters with higher relative molecular mass don't possess a robust fragrance because of their higher boiling point.
• They often don't ever get to our nose.
• They're fat-soluble, but not water-soluble, so even if they get to our nose, they will not undergo the mucous layer to succeed into our scent receptors.
• They are also very bulky so they do not fit alright into the scent receptors because they're way too big.
• All of these things contribute to them having a light-weight smell if any smell within the least.