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Acids and bases (A-level only)

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Question 13

A student is analysing a sample of wastewater discharged from an industrial metal-treatment plant. The wastewater is found to contain sulfuric acid (H2SO4\text{H}_2\text{SO}_4H2​SO4​) at a concentration of 0.0075 mol dm-3.

Assuming complete dissociation of both protons, what is the pH of this wastewater sample?

A

−2.12-2.12−2.12

B

2.122.122.12

C

−1.82-1.82−1.82

D

1.821.821.82

Markscheme

Acids and bases (A-level only) Questions

  1. A Level
  2. /Chemistry
  3. /Acids and bases (A-level only)

77 exam-style questions on AQA A Level Chemistry Acids and bases (A-level only), covering Brønsted–Lowry acid–base equilibria in aqueous solution (A-level only), Definition and determination of pH (A-level only), The ionic product of water, $K_w$ (A-level only), Weak acids and bases $K_a$ for weak acids (A-level only), pH curves, titrations and indicators (A-level only), and Buffer action (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.

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