Chemistry · May / June 2023 · Paper 11 · Question 19
5070The characteristic properties of acids and bases
Samples of HCl(aq) and HNO3(aq) are tested using universal indicator paper. The sample of HCl(aq) has a pH of 4 and the sample of HNO3(aq) has a pH of 2. Which statement is correct?
- AHCl(aq) is a weak acid and HNO3(aq) is a strong acid.
- BHNO3(aq) has a lower formula mass than HCl(aq).
- CThe HNO3(aq) is more concentrated than the HCl(aq).
- DThe HCl(aq) has dissociated more than the HNO3(aq).
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Correct answer: C. The HNO3(aq) is more concentrated than the HCl(aq).
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