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

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
Transcript text: If the hydrogen ion concentration of a solution is $10^{-8}$ molar, the solution has a pH of $\qquad$ (A) 10.8 (B) 8 (C) $10^{-8}$ (D) -8
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Solution

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Solution Steps

Step 1: Understanding pH Calculation

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

Step 2: Applying the Formula

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

Step 3: Simplifying the Logarithm

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

Final Answer

\(\boxed{8}\)

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