In the reaction of aluminum bromide with ionized sodium bromide, which compound is the Lewis acid?

1 Answer
Feb 25, 2016

Answer:

In other words you ask which is the electron pair acceptor. Clearly, it is aluminum.

Explanation:

The Lewis concept of acidity designates acids as electron pair acceptors, and bases as electron pair donors. For the reaction:

#AlBr_3 + Br^(-) rarr AlBr_4^-#,

clearly the bromide ion is the base, the electron donor, and aluminum, the acid, the electron-pair acceptor. How would you designate the reaction of #BCl_3# with chloride ion in these terms?