A buffer solution contains 0.11 mol of acetic acid and 0.13 mol of sodium acetate in 1.00 L.  What is the pH of the buffer after the addition of 3×10−2 mol of KOH? Express your answer using two significant figures.   What is the pHpH of the buffer after the addition of 3×10−2 mol of HNO3? Express your answer using two significant figures.

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A buffer solution contains 0.11 mol of acetic acid and 0.13 mol of sodium acetate in 1.00 L. 

What is the pH of the buffer after the addition of 3×10−2 mol of KOH?
Express your answer using two significant figures.
 
What is the pHpH of the buffer after the addition of 3×10−2 mol of HNO3?
Express your answer using two significant figures.
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