Pearson Edexcel International GCSE (9–1) · CHEMISTRY · Section
Theories of acids and bases
19 practice questions
Practice questions
1–3 of 3 · Hard
Question 1
2 marks · Hard
Answer and see the solution →State and describe one key difference between the Arrhenius and Bronsted-Lowry theories of acids and bases.
Question 2
5 marks · Hard
Answer and see the solution →Ethanoic acid (CH_3COOH) reacts with ammonia (NH_3) in aqueous solution to form ammonium ethanoate (CH_3COONH_4).
Use the Bronsted-Lowry theory to explain this reaction.
(a)[1 mark]Write a balanced equation for this reaction, including state symbols.
(b)[2 marks]Identify the Bronsted-Lowry acid and base among the reactants, and state which substance donates a proton.
(c)[2 marks]Explain, using the concept of proton transfer, how the products are formed according to the Bronsted-Lowry theory.
Question 3
2 marks · Hard
Answer and see the solution →For the reaction below, identify the acid and the base according to the Bronsted-Lowry definition.