2 replies to this topic

[jamiep]

Vinyl acetate and hexane have the same relative formula mass. Explain why you would expect vinyl acetate to have higher boiling point than hexan.

This is worth 2 marks. My answer was as follows:

-Vinyl Acetate will have hydrogen bonding which means more energy will be needed to break the bonds

-Vinyl Acetate has 2 double band which are more difficult to break (thus needing more energy) where as hexane is fully saturated.

Do you think this is two marks worth?

[dondon]

I think so because it wouldn't expect you to write four points for a half mark each coz its a slightly more complicated question

[dfx]

The marking guide says:

Stronger intermolecular bonds in vinyl acetate due to hexane having can der waal's forces only

OR

vinyl acetate having permanenet dipole interactions.