What is the formula for finding pH of a solution when given volume and concentration?

The pH of a solution can be calculated using the formula: pH = -log[H⁺], where [H⁺] is the concentration of hydrogen ions in moles per liter (M). If you're given the volume and concentration of a strong acid or base, you can directly use the concentration to find [H⁺]. For example, if you have a 0.01 M hydrochloric acid solution, the pH would be calculated as pH = -log(0.01) = 2.