pH Scale Comparison of Household Items

The pH scale is a measure of the concentration of acid or base a substance contains. By definition, the pH scale is the concentration of the hydrogen ion. The hydrogen ion is a characteristic of acids. High hydrogen ion amounts indicate high acid concentration, low hydrogen ion amounts indicates a basic concentration. The scale is graduated from 0-14. The numerically low end, 0-6.9, is the acid end. The closer the pH is to zero indicates a greater acid concentration. The mid point on the scale is 7; having equal amounts of acid and base making a neutral substance.
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0
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1
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2
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3
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4
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5
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6
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7
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8
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9
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10
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11
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12
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13
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14
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0
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1
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2
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3
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4
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5
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6
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7
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8
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9
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10
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11
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12
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13
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14
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0
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1
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2
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3
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4
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5
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6
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7
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8
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9
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10
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11
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12
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13
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14
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0
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1
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2
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3
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4
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5
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6
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7
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8
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9
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10
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11
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12
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13
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14