Post-UTME Chemistry 2016 Objective — Question 2
Question 2 of 20 from the Post-UTME Screening (Post-UTME) Chemistry 2016 Objective paper, with the correct answer and a full explanation.
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Calculate the pH of an aqueous solution of a 0.01M dibasic acid.
- A. 2.3
- B. 2.0
- C. 1.7Correct
- D. 1.0
Explanation
A dibasic acid releases 2 H+ per molecule, so [H+] = 2 x 0.01 = 0.02M. pH = -log(0.02) = 1.7.
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