what is the ph of a 1 x10^-4 mol hci solution?

The pH of a solution is calculated using the formula:

pH = -log[H+]

In this case, we have a 1 x 10^-4 mol HCl solution. HCl is a strong acid that dissociates completely in water to give equal amounts of H+ and Cl- ions.

Therefore, the concentration of H+ ions in the solution is 1 x 10^-4 mol/L.

Now we can calculate the pH using the formula:

pH = -log(1 x 10^-4) = -(-4) = 4

So, the pH of a 1 x 10^-4 mol HCl solution is 4.