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pH has a scale of 1-14. There is an order of magnitude difference in hydrogen ion activity between each integer of the pH scale. In this color scale, pH values of less than 7 are acidic (orange-red); if they are greater than 7 they are basic (green-blue).
Originally uploaded in Math You Need - Majors:Orders of Magnitude.

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Last Modified: 2024-08-19 09:46:30
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