The concentration of hydrogen in soil sample 13 * 10 ^ - 6 * M the soil is tested with a pH meter, what value should the meter read?

pH = 4.9

Explanation:

Given data

[H⁺] = 13 * 10⁻⁶ M

The pH is a scale used to determine the acidity or basicity of a solution. The pH is related to the concentration of hydrogen ions through the following expression.

pH = - log [H⁺]

pH = - log 13 * 10⁻⁶

pH = 4.9

Since the pH < 7, the soil is considered to be acid.