1. Find the pH when there are 0.034 moles of h+ in a liter of solution

Question

2. Find the pH when there are 1.6x10^-7 moles of h+ in 500 ml of solution

Please help me on these only problems im struggling with, thank you!

Answer 1

It would help if you told us what you don't understand about these.
For #1, pH = -log(H^+). Substitute and solve for pH.

For #2. Same formula. I assume this is the TOTAL H^+ and there is no need to add in any contribution due to the ionization of H2O.