Question

What is the pH of a solution if the concentration of \( \text{H}^+ \) ions is \( 1 \times 10^{-5} \, \text{mol/L} \)?

• A. 5
• B. 6
• C. 4
• D. 7

Hint:

Remember: pH is the negative logarithm of the hydrogen ion concentration. A pH of 7 is neutral, less than 7 is acidic, and greater than 7 is basic.