What is the pH of a solution with a hydrogen ion concentration of 1 x 10^-3 M? (

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Question: What is the pH of a solution with a hydrogen ion concentration of 1 x 10^-3 M? (2019)

Options:

Correct Answer: 3

Exam Year: 2019

Solution:

pH = -log[H+] = -log(1 x 10^-3) = 3.

What is the pH of a solution with a hydrogen ion concentration of 1 x 10^-3 M? (2019)

What is the pH of a solution with a hydrogen ion concentration of 1 x 10^-3 M? (2019)

Step 1: Identify the hydrogen ion concentration given in the question, which is 1 x 10^-3 M.
Step 2: Use the formula for pH, which is pH = -log[H+].
Step 3: Substitute the hydrogen ion concentration into the formula: pH = -log(1 x 10^-3).
Step 4: Calculate the logarithm: log(1 x 10^-3) equals -3.
Step 5: Substitute this value back into the pH formula: pH = -(-3).
Step 6: Simplify the expression: pH = 3.

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