We’re being asked to calculate the pOH of a 5.0×10−2 M sodium butyrate solution.
Since we don't really need to know the composition of butyric acid, we'll assign it as just HA.
So sodium butyrate is NaA which is just the salt form of the conjugate base.
The salt dissociates in solution as:
NaA → Na+(aq) + A-(aq)
So we effectively have a weak base in the solution.
Butyric acid is responsible for the foul smell of rancid butter. The pKa of butyric acid is 4.84.
Calculate the pH of a 5.0×10−2 M solution of sodium butyrate.
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