Question

What do you mean by ph sacle ,wr any four uses of ph scale?

Answer 1

Logarithmic means that the scale is base ten. For example, something with pH 3 is ten times more acidic than pH 4, and 100 times more acidic than pH 5 etc. The pH scale is a useful tool to give a number forthe acidity or basicity of an aqueous solution.

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Answer 2

A pH value is a number from 1 to 14, with 7 as the middle (neutral) point. Values below 7 indicate acidity which increases as the number decreases, 1 being the most acidic. Values above 7 indicate alkalinity which increases as the number increases, 14 being the most alkaline.