Question 1
According to the Arrhenius model, which of the following correctly describes the ionisation behaviour of acetic acid (CH₃COOH) in aqueous solution?
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Chemistry · Unit 2 · Aqueous solutions and acidity · Aqueous solutions and molarity
Apply the Arrhenius model to explain the behaviour of strong and weak acids and bases in aqueous solutions. Reactions of acids
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Question 2
Which of the following best describes why hydrochloric acid (HCl) is classified as a strong acid using the Arrhenius model?
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Question 3
A student prepares two 0.10 mol L⁻¹ aqueous solutions: one containing nitric acid (HNO₃) and the other containing hydrofluoric acid (HF). The student measures the pH of each solution and finds that the nitric acid solution has a lower pH than the hydrofluoric acid solution. Apply the Arrhenius model to explain why the nitric acid solution has a lower pH than the hydrofluoric acid solution.
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