A 1 liter solution contains 0.393 M
nitrous acid and 0.524 M
potassium nitrite.
Addition of 0.197 moles of potassium
hydroxide will:
(Assume that the volume does not change upon the addition of
potassium hydroxide.)
Raise the pH slightly
Lower the pH slightly
Raise the pH by several units
Lower the pH by several units
Not change the pH
Exceed the buffer capacity
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