Calculate the ph of a 0.10 m solution of hypochlorous acid

1

Explanation:

Firstly we need to know the chemical formula of hypochlorous acid. This is HOCl.

The ionization equation is as follows:

HOCl ⇌ ClO− + H

This means in every one mole of the acid, exactly one mole of hydrogen ions is produced. This also means that there is exactly 0.1M of H+ in 0.1M of the acid.

We now go on to calculate the pH of the acid solution. By definition, the pH is the negative logarithm to base 10 of the hydrogen ion concentration of the acid.

Mathematically: pH = -log[H+]

Now we know that [H+] = 0.1M

pH = -log[0.1]

pH = 1

The pH of 0.1M hypochlorous acid is 1

chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. these processes are called chemical reactions and, in general, are not reversible except by further chemical reactions. some reactions produce heat and are called exothermic reactions and others may require heat to enable the reaction to occur, which are called endothermic reactions. understanding chemical changes is a major part of the science of chemistry.