what is a bronsted base
The Bronsted-Lowry definition of acids and bases is pretty simple. An acid is a proton donor, and a base is a proton acceptor. In the example of ammonia dissolving in water (NH3 + H2O = NH4+ + OH-) the water donates a proton, so it is the acid.he hydroxide ion is accepting the proton and is called a conjugate base. Every Bronsted-Lowry acid has a conjugate base, and every Bronsted-Lowry base has a conjugate acid. 1  Conjugate acid: an acid that forms when a base gains a proton. 2  Conjugate base: a base that forms when an acid loses a proton.