Theories of acids and bases

2 marks · Easy

For the following reaction, identify the Bronsted-Lowry acid and base on the left-hand side.

(a)

Identify the acid.

[1 mark]

(b)

Identify the base.

[1 mark]

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(a) Nitric acid (HNO_3)

(b) Water (H_2O)

Common mistakes: Mixing up acid/base roles

Show mark scheme and worked solution

Marking points

B1 (a) · 1 mark · Correctly identifies HNO_3 as the acid.

B2 (b) · 1 mark · Correctly identifies H_2O as the base.

Worked solution

a) HNO_3 is the acid because it donates a proton (H^+).

b) H_2O is the base because it accepts a proton to become H_3O^+.