If a buffer solution is 0.270 M0.270 M in a weak acid (?a=5.1×10−5)Ka=5.1×10−5) and 0.430 M0.430...

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Question

If a buffer solution is 0.270 M0.270 M in a weak acid (?a=5.1×10−5)Ka=5.1×10−5) and 0.430 M0.430 M in its conjugate base, what is the pH?

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