6C17 - strength of bases

[Montana James 4G]

Why is BrO- a stronger base than C17H19O3N?

[Nawal Dandachi 1G]

morphine is basic because it contains a nitrogen with a lone pair. However, BrO- is a conjugate base of a weak acid, so its a stronger base.

[Fatemah Yacoub 1F]

I remember during lecture he said anything with Nitrogen is usually a weak base. So that is a good rule of thumb.

[Kaitlyn Ang 1J]

As a follow up question, what are the general rules for determining the strengths of bases? For acids, it's through bond length and electronegativity, but I don't think Lavelle explicitly mentioned the criteria for bases.

Thanks!

[ckilkeary 2G]

As a follow up question, what are the general rules for determining the strengths of bases? For acids, it's through bond length and electronegativity, but I don't think Lavelle explicitly mentioned the criteria for bases.

Thanks!

I had the same question and did a little bit of research online and found somewhere that the more negative charge means more basic.
Ex. Basicity: H2PO4 - < HPO4 2- < PO4 3-
I don't know how much we can treat this as a rule of thumb but it seems to be consistent with the homework problem given BrO- has a charge of -1 and C17H19O3N doesn't have a charge.