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17 August, 00:23

A decrease of one unit on the pH scale means a solution is ten times more acidic. A decrease of two units means the solution is 100 times more acidic. How much more acidic is acid precipitation (pH = 4.0) than pure water (pH = 7.0) ?

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  1. 17 August, 01:02
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    If the pH is decreased 3 units, then it must be 10^3 = 1000
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