Question

Identify the Bronsted-Lowry acid in the following reaction:

H3PO4(aq) + H2O(l) → H2PO42−(aq) + H3O+(aq)
A. H2O (l)
B.H2PO4^2- (aq)
C.H3PO4(aq)
D.H3O+ (aq)

Answer 1

Answer: C. H3PO4 (aq)

Step-by-step explanation:

A Brønsted-Lowry acid is a proton (H+) donor. H3PO4 loses a proton and creates the conjugate base H2PO4^2- (aq).