Answer:
pH of a 0.00100 molar solution of HBr = 3
Explanation:
You get the -log of the molarity to get the pH or the pOH, depending on whether the substance is an acid or a base.
If the substance is an acid, getting the -log of its molarity would get you the pH.
If the substance is a base, getting the -log of its molarity would get you the pOH.
Since HBr is an acid, you will get the pH of it by getting the -log of its molarity, which in this case is 0.001
-log(0.001) = 3
(btw, when the pH and the pOH are added together, you get 14, so the pOH of this solution of HBr is 14 - 3, which is 11)
