Question

No of hydroxyl ions present in 100 ml of KOH solution with pH =11 is -​

Answer 1

ANSWER

pH 13 means [H+]=10−13 M.

Thus, 1 L of solution contains 10−13 moles of hydrogen ions.

Hence, 1 ml or 1 cc of solution will contain 10−13×10001=10−16 moles of hydrogen ions.

They corresponds to 10−16×6.023×1023=6.023×107 hydrogen ions.