Question

What is the pH of a solution with a \( \text{H}^+ \) concentration of \( 1 \times 10^{-3} \, \text{mol/L} \)?

• A. 3
• B. 4
• C. 5
• D. 6

Hint:

Remember: The pH of a solution is the negative logarithm of the hydrogen ion concentration. A lower pH means more acidic.