J.R. S. answered 02/18/19
Ph.D. in Biochemistry--University Professor--Chemistry Tutor
pH is a log scale. It is defined as the negative log of the H+ concentration. So, 10,000 is 104 and the log is 4. So if solution A has 10,000 times as many H+ ions as solution B, the pH will be 4 pH units lower than that for solution B. Thst is the difference in p
H units will be 4.