The questions below explore fundamental ideas about proton-transfer processes…
CHEMISTRY · Multi-part · A Level · Chemistry · Acids and bases · Acids and bases
Problem
The questions below explore fundamental ideas about proton-transfer processes involving water in aqueous solution.
Parts
(a) State the Brønsted–Lowry definitions of an acid and a base.
(b) Write one chemical equation in which liquid water behaves as a Brønsted–Lowry acid and a second equation in which liquid water behaves as a Brønsted–Lowry base. In each equation clearly identify the conjugate acid–base pair that contains water.
(c) Using the equations from part (b), describe in words why water is classified as an amphoteric substance.