MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Physical ChemistryIonic equilibriumSelf-ionization of Water

Which of the following solutions will have the highest pH value ?

A.0.01 M NaOH✓ Correct

B.0.02 M CH3COONa

C.0.10 M NaHCO3

D.0.10 M H2SO4.

Explanation

A will be most basic. Because NaOH is a strong base. Therefore, it has high pH value. 2 pOH log[OH log[10 2 pH pOH 14 pH 14 2

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