Q17 · 2021 · Paper 1Unclassified1 mark
QUESTION 17
Determine the concentration of hydrogen ions (H+) in an aqueous solution containing 1.2 × 10–3 M hydroxide ions (OH–).
(A) 1.2 × 1011
(B) 8.3 × 10–12
(C) 8.3 × 10–17
(D) 1.2 × 10–17
WORKED SOLUTION
1 markAnswer B
OFFICIAL ANSWERB
QCAA awards 1 mark for selecting option B.
Correct option from the official QCAA answer key.