defined the pH value
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##Ph = >stands for potential of hydrogen
It is a measure of acidity and alkalinity of water soluble substances.
There are 14 number on PH scale .
Below 7, all are acids.
At 7, it is neutral.
Above 7 ,all are bases.
It is a measure of acidity and alkalinity of water soluble substances.
There are 14 number on PH scale .
Below 7, all are acids.
At 7, it is neutral.
Above 7 ,all are bases.
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