MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Physical ChemistryIonic equilibriumPrevious Year Questions
Calculate the pOH of a solution at 25C that contains 1 x 1010 M of hydronium ions, i.e., H3O+. (AIPMT 2007)
A.4.000✓ Correct
B.9.000
C.1.000
D.7.000
Explanation
Given, [H3O+] = 1 x 1010 or, pH = 10 Now at 25C, pH + pOH = pKw = 14 or, pOH = 14 pH = 14 10 = 4
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