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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 th... 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 acid X and acid Y, consider their concentrations and acid strength.
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Concentration: Acid X is 0.1 mol L⁻¹ hydrochloric acid, while acid Y is 1.0 mol L⁻¹ acetic acid. Therefore, acid X is more dilute than acid Y.
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Strength: Hydrochloric acid is a strong acid, meaning it completely dissociates in solution. Acetic acid, on the other hand, is a weak acid and does not fully dissociate. Thus, acid X is stronger than acid Y.
Combining these points, we can conclude that acid X is stronger and more dilute than acid Y. Therefore, the correct answer is (B) X is stronger and more dilute than Y.