PH is defined as -log[H+]
It tells you how acidic or alkaline a solution is. A pH of 7 is neutral. Acids have a pH of 1 to 7. Alkaline substances have a pH of 7 to 14. The lower the pH the more acidic it is, and the higher the pH the more alkaline it is. PH depends on the amount a solution dissociates into H+ ions and it's salt. The more an acid dissociates, the lower it's pH, as the strength of an acid is determined by the amount it dissociates in solution.
It tells you how acidic or alkaline a solution is. A pH of 7 is neutral. Acids have a pH of 1 to 7. Alkaline substances have a pH of 7 to 14. The lower the pH the more acidic it is, and the higher the pH the more alkaline it is. PH depends on the amount a solution dissociates into H+ ions and it's salt. The more an acid dissociates, the lower it's pH, as the strength of an acid is determined by the amount it dissociates in solution.