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Ph
indicates the intensity of a given water in terms of
alkalinity or acidity. Acidity or alkalinity is measured
on a scale that goes from 0 to 14. Seven, the mid-point,
is the measure of a neutral water, neither acid nor
alkaline.
Ph
figures larger than 7 indicate alkaline solutions with
the intensity of alkalinity increasing as the number
becomes larger.
Ph
figures lower than 7 indicate acid solutions with the
intensity of acidity increasing as the numbers get
smaller.
There
are two important things to bear in mind when
considering ph
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Always
it is an intensity measure, not one of quantity. A
thermometer will tell how cold a room is but not how
much warm air is necessary to heat it.
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It
is an exponential function. Ph 10 is 10 times
alkaline as ph 9 and 100 times as ph 8. Similarly a
ph 2 is 100 times as acid as ph4 and 1,000 times as
acid as ph 5.
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