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Concentration changes on the pH scale
A solution of hydrochloric acid had a hydrogen ion concentration of 1.0 mol/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?
Tick (✓) one box.
100 mol/dm3
10 mol/dm3
0.10 mol/dm3
0.010 mol/dm3 12
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- 1 Select: 0.10 mol/dm3.
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0.10 mol/dm3. A pH increase of 1 means the hydrogen ion concentration decreases by a factor of 10.