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What is PH scale

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What is PH scale

Posted by Prachi Mehta 6 years, 5 months ago

CBSE > Class 07 > Science

2 answers

Shaurya Chauhan 6 years, 5 months ago

The pH scale is logarithmic and approximates the negative of the base 10 logarithm of the molar concentration (measured in units of moles per liter) of hydrogen ions in a solution. More precisely it is the negative of the base 10 logarithm of the activity of the hydrogen ion.At 25°C, solutions with a pH less than 7 are acidic and solutions with a pH greater than 7 are basic. The neutral value of the pH depends on the temperature, being lower than 7 if the temperature increases. The pH value can be less than 0 for very strong acids, or greater than 14 for very strong bases.

Komal Sidhu 6 years, 5 months ago

PH scale is an instrument that is used for finding acidity or basic of solution it begins from 0 to 14 from 0 being very acidic and till 14 being very basic the neutral substances are given a PH value of 7 that means neither acid nor base

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