The acid has 10-fold more hydrogen ions than pure water
This is simply a measure of the acidity / alkalinity of a solution.
The pH measures the hydrogen ion concentration while the pOH measures the hydroxide ion concentration
The pH scale is a scale that gives an understanding of the variation of the acidity / alkalinity of a solution.
The scale ranges from 0 to 14 indicating:
pH = –Log [H⁺]
6 = –Log [H⁺]
Multiply through by –1
–6 = Log [H⁺]
Take the anti-log of –6
[H⁺] = anti-log of (–6)
[H⁺] in acid = 1×10¯⁶ M
pH = –Log [H⁺]
7 = –Log [H⁺]
Multiply through by –1
–7 = Log [H⁺]
Take the anti-log of –7
[H⁺] = anti-log of (–7)
[H⁺] in pure water = 1×10¯⁷ M
[H⁺] in acid / [H⁺] in water = 1×10¯⁶ / 1×10¯⁷
[H⁺] in acid / [H⁺] in water = 10
Cross multiply
[H⁺] in acid = [H⁺] in water × 10
Thus, the acid has 10-fold more hydrogen ions than pure water
Learn more about pH:
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