Question

use of pH scale in everyday life

Answer 1

The pH scle in human beings is I think it's 5.8

Answer 2

HELLO DOST

HERE IS THE EXPLAINED ANSWER

Uses of pH in daily life:

The sting of insects: When a honeybee, ant or spiders sting a person, they inject an acidic liquid (formic acid) into the body. This causes too much pain and irritation. Baking soda (sodium hydrogen carbonate NaHCO3) is a mild non-corrosive base.

When it is applied to the stung area, it reduces the effect of acid by neutralizing the excess acid. As a result, the pain and irritation are reduced.

Acidity in the stomach: Acidity causes pain and irritation in the stomach. Milk of magnesia [Mg(OH)2] or Al(OH)3 solution are used to treat acidity problem in the stomach.

These are the mild bases which neutralize the effect of hydrochloric acid produced in the stomach. These maintain the pH of the stomach and as a result decrease acidity.

Tooth decay: When teeth are not cleaned after food at night, some bacteria present in our mouth reacts with remains of food on teeth and produce acid. As a result, acid reduces the pH of mouth. If the pH falls to 5.5, then enamel of teeth can degrade.

Hence, we should brush our teeth with toothpaste (basic) which reduces the effect of acid in the mouth.

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