Question

How much more acidic is a solution of pH 3 compared with a solution of pH 6?

Answer 1

Hint:The acid is the species which donates its hydrogen ion to base. The solution whose pH is less is usually in concentrated form and as the pH of the solution increases, concentration of the solution (hydrogen ion) decreases.

Complete step by step answer:The acidic compound is defined as those compounds which on dissolving in water release protons or hydrogen ions. The pH of the acid is usually less than 7. The acidic solution changes the blue litmus paper to red.
The pH of an acid is defined as the negative logarithm of hydrogen ion concentration of hydronium ion concentration.
The pH of an acidic solution is calculated as shown below.
$pH = - {\log _{10}}[{H_3}{O^ + }]$
By the formula of pH, we can say that the solution whose pH is 1 is ten times more acidic than the solution whose pH is 2.
When the pH of the acidic solution is 3, it is 1000 times more acidic than the solution with pH 6.
For the solution with pH value 3, the hydronium ion concentration will be ${10^{ - 3}}mol{L^{ - 1}}$.
The pH equation is given as shown below.
$3 = - {\log _{10}}[{10^{ - 3}}]$
For the solution with pH value 6, the hydronium ion concentration will be ${10^{ - 6}}mol{L^{ - 1}}$.
The pH equation is given as shown below.
$6 = - {\log _{10}}[{10^{ - 6}}]$
Therefore, the solution with pH 3 is 1000 times more acidic than the solution with pH 6.

Note:
The pH of the solution is related to the strength of the acid. Lower is the pH of the acidic solution, more acidic will be the solution and higher will be the pH, the solution will be less acidic.