Place 25 mL of 0.1 M HCL is a beaker and measure pH

Question

I just need the pH of 25 mL of this solution

Answer 1

When calculating the pH of a solution, the volume is not relevant. The pH of 10 mls is the same as the pH of 20 mls or 100 mls. The pH of 0.1 M HCl is 1.0 whether it is 25 mls or any other volume.

pH = -log [H⁺]

[H⁺] of 0.1 M HCl = 0.1 M

-log 0.1 = 1.0 = pH