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Acid X is 0.1 mol L⁻¹ hydrochloric acid - HSC - SSCE Chemistry - Question 8 - 2006 - Paper 1
Question 8
Acid X is 0.1 mol L⁻¹ hydrochloric acid. Acid Y is 1.0 mol L⁻¹ acetic acid (ethanoic acid). How does acid X compare with acid Y? (A) X is weaker and more dilute tha... show full transcript
Worked Solution & Example Answer:Acid X is 0.1 mol L⁻¹ hydrochloric acid - HSC - SSCE Chemistry - Question 8 - 2006 - Paper 1
Step 1
How does acid X compare with acid Y?
Answer
To compare the strengths of the acids, we note that hydrochloric acid (HCl) is a strong acid, while acetic acid (CH₃COOH) is a weak acid. Therefore, acid X (0.1 mol L⁻¹ HCl) is stronger than acid Y (1.0 mol L⁻¹ acetic acid).
Next, we consider the concentration of the acids. Acid X has a lower concentration (0.1 mol L⁻¹) compared to acid Y (1.0 mol L⁻¹). Therefore, acid X is more dilute than acid Y.
Putting these observations together, we can conclude that acid X is stronger than acid Y but more dilute.