pH


pH
A logarithmic measure of the concentrationA measure of the ratio of the quantity of a substance to the quantity of solvent, solution, or ore. Also, the process of making something more concentrated. of hydrogen (hydronium) ion; pHA logarithmic measure of the concentration of hydrogen (hydronium) ion; pH = -log10([H+]) or pH = -log10([H3O+]). = -log10([H+]) or pH = -log10([H3O+]).