Theories of acids and bases

2 marks · Normal

Use the Bronsted-Lowry definition to identify the acid and base in the following reaction: \[ H_2SO_4(aq) + CuO(s) \rightarrow CuSO_4(aq) + H_2O(l) \] State which is the acid and which is the base.

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Acid: H_2SO_4; Base: CuO

Also accept: H_2SO_4 donates proton (acid); CuO accepts proton (base)

Common mistakes: Confusing oxide as acid

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Marking points

B1 · 1 mark · Correctly identifies H_2SO_4 as the acid.

B2 · 1 mark · Correctly identifies CuO as the base.

Worked solution

H_2SO_4 is the acid (it donates a proton); CuO is the base (it accepts a proton).