What is the concentration of H+ ions in moles per dm3 of a sodium of pH 4.398?
-
4.0 χ 10-5
- 0.4 χ 10-5
- 4.0 χ 10-3
- 0.4 χ 10-3
The correct answer is: A
Explanation
PH = -log (H+)(H+) = 10-4.348 = 4.0 χ 10-5