Question

A solution that has a high concentration of hydrogen ions has what type of pH?

2
7
13
14

Answer 1

A solution that has a high concentration of hydrogen ions has a pH value of 2. This means, the solution is very acidic and if one were to calculate the concentration of hydrogen ions, using the formula:

pH = -log(H+)

Given the concentration it would be low.

Answer 2

Given information:

A solution with a high H+ ion concentration

To determine:

The nature of pH of such a solution

Explanation:

pH is a measure of the H+ ion concentration in a given solution. Lower the pH higher will be the H+ concentration and the solution is termed acidic. In contrast, if the pH is higher the H+ concentration will be lower and the solution is basic.

Mathematically,

pH = -log[H+]

[H+] = $10^{-pH}$

pH = 2; [H+] = 10⁻²M

pH = 7; [H+] = 10⁻⁷M

pH = 13; [H+] = 10⁻¹³M

pH = 14; [H+] = 10⁻¹⁴M

Ans: (a)

Thus, the highest concentration of H+ ions is for a solution of pH = 2