# what is a ph scale? state its maximum and minimum value.

A pH scale is a measure of how acidic or basic a substance is (pH stands for 'potential of Hydrogen'). The pH scale formally measures the activity of hydrogen ions in a substance or solution, which approximates the concentration of hydrogen ions under low concentrations.

The minimum value is 0 and the maximum is 14, i.e the pH scale ranges from 0 to 14. A pH of 7 is neutral. A pH less than 7 is acidic. A pH greater than 7 is basic.

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A pH scale measues how intensely the given substance is acidic or basic.

The minimum value is 0 and its colour is red whereas the maximum value is 14 and its colour is blue.

hope you got it :)

• -1

it is the indicator to measure whether the substance is acid or base or neutral.The min. value is 1 which means acidic and max. value is 14 which means basic and the substance which have pH 7 means neutral.

plz hit thumbs up.

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it is a scale for measuring hydrogen ion concentration. The concentration of H+ are generally small, therefore conc. of H+ ions are expressed in terms of pH. pH is defined as negative logarithm of H+ conc. or H3O+ conc.

pH = -log[H+] or pH = -log[H3O+]

pH stands for power of hydrogen,

pH 7 is basic

-hope u undrstnd d concpt-

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a scale introduced by a scientist named sorenson discovered ph sacle which shows the concentration oh H ions in a particular solution. it has its values from 1-14

1-7 are acids (1-3 strong acids, 3-5 moderate acids, 5-7 weak acids)

7 is neutral

7-14 are bases (7-10 weak base, 10-12 moderate base, 12-14 strong base)

the acids have the darker shades of red and bases have the shades of pink..

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