What is the Hydrogen Ion [H⁺] Concentration of a Solution

Question

What is the hydrogen ion [H⁺] concentration of a solution of pH 8?
A)8 M
B)8 x 10⁻⁶ M
C)0)01 M
D)10⁻⁸ M
E)10⁻⁶ M

Accepted Answer

The pH of a solution is defined as the negative logarithm of the hydrogen ion concentration [H⁺]. The formula to calculate [H⁺] is [H⁺] = 10⁻pH. Therefore, in this case, [H⁺] = 10⁻8 M.