IB Chemistry SL 3.4.6 Lewis acid-base theory
IB Chemistry SL 3.4.6 Lewis acid-base theory
Strengthen Lewis acid-base reasoning by deciding which species donate or accept electron pairs in catalysts, ions, and dimer formation.
How this is tested
- deduce that Al in AlCl3 is an electrophile and Lewis acid in aromatic substitution catalysis
- explain BeCl2 dimerization as lone-pair donation from Cl on one monomer to electron-deficient Be on another
- distinguish Lewis acids not Brønsted acids, e.g. BF3 or Cu2+, from Lewis bases such as NH3 or OH-