Question

What is the pH of a solution that has a hydrogen ion concentration of 2.5 x 10^-7 M? Determine the pH using a pH meter and state whether the solution is acidic, neutral, or basic based on the calculated pH value.

Answer 1

To calculate the pH of a solution with a hydrogen ion concentration of 2.5 x 10^-7 M, we can use the pH formula:pH = -log10[H+]Where [H+] is the hydrogen ion concentration.pH = -log10 2.5 x 10^-7 pH  6.60Now, we can determine whether the solution is acidic, neutral, or basic based on the calculated pH value:- If pH < 7, the solution is acidic.- If pH = 7, the solution is neutral.- If pH > 7, the solution is basic.Since the calculated pH is 6.60, which is slightly less than 7, the solution is considered to be weakly acidic.