What is the pH of a solution where the concentration of H⁺ ions is 1.0 x 10⁻⁷ M?

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Question: What is the pH of a solution where the concentration of H⁺ ions is 1.0 x 10⁻⁷ M?

Options:

Correct Answer: 7

Solution:

pH = -log[H⁺] = -log(1.0 x 10⁻⁷) = 7.

What is the pH of a solution where the concentration of H⁺ ions is 1.0 x 10⁻⁷ M?

What is the pH of a solution where the concentration of H⁺ ions is 1.0 x 10⁻⁷ M?

Step 1: Identify the concentration of H⁺ ions in the solution, which is given as 1.0 x 10⁻⁷ M.
Step 2: Use the formula for pH, which is pH = -log[H⁺].
Step 3: Substitute the concentration of H⁺ ions into the formula: pH = -log(1.0 x 10⁻⁷).
Step 4: Calculate the logarithm: -log(1.0 x 10⁻⁷) equals 7.
Step 5: Conclude that the pH of the solution is 7.

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