Achieve #13

[Claire1A]

In Achieve #13, they ask us to disregard the shape for the purpose of the answer. However, if we did take the shape into account, how many hydrogen bonds could urea form and why can it not form all 8 hydrogen bonds?

[AnnaKessler2H]

Hi, the shape would play a role in what hydrogen bonding sites are accessible. The bond angles and structure changes the potential for the molecule to act as a bond donor or acceptor.