Questions: If the hydrogen ion concentration of a solution is 10^-8 molar, the solution has a pH of (A) 10.8 (B) 8 (C) 10^-8 (D) -8

Solution Steps

The pH of a solution is calculated using the formula: \[ \text{pH} = -\log[\text{H}^+] \] where \([\text{H}^+]\) is the hydrogen ion concentration.

Given the hydrogen ion concentration \([\text{H}^+] = 10^{-8}\) molar, we substitute this value into the formula: \[ \text{pH} = -\log(10^{-8}) \]

Using the properties of logarithms, we know that: \[ -\log(10^{-8}) = -(-8) = 8 \]

Final Answer