briggstherock11
briggstherock11
30-08-2018
Biology
contestada
what are facts about ph?
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bwb20000
bwb20000
30-08-2018
Mathematically, pH is calculated as the negative logarithm of the hydrogen ion concentration. For example, the hydrogen ion concentration of distilled water is 10–7and hence pure water has a pH of 7.
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