How to calculate pH?

5 ⤊

Calculate the pH of a 0.02M solution of Sr(OH)2 (2 is a subscript). Thanks!

2006-12-16 12:51:05 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry

use a ph test strip but im not that smart so dont trust me ;)

2006-12-16 12:55:56 · answer #1 · answered by rmushero_1992 1 · 1⤊ 1⤋

Sr(OH)2 <=> Sr2+ + 2OH-
the molarity of OH- 2 * 0.02 = 0.04
pOH = -log[OH-] = 1.4
pH = 14 - pOH = 12.6

2006-12-16 20:58:40 · answer #2 · answered by James Chan 4 · 4⤊ 0⤋