A solution of hydrochloric acid has a hydrogen ion concentration of 1.0mol/dm³. Water was added to the hydrochloric acid until the pH increased by 1
What was the hydrogen ion concentration of the hydrochloric acid after water had been added?
Multiple choice answers:
100 mol/dm³
10 mol/dm³
0.10 mol/dm³
0.010 mol/dm³

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