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    Exam 15: Applications of Aqueous Equilibria
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    What Is the [CH<sub>3</sub>CO<sub>2</sub>-]/[CH<sub>3</sub>CO<sub>2</sub>H] Ratio Necessary to Make a Buffer
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What Is the [CH3CO2-]/[CH3CO2H] Ratio Necessary to Make a Buffer

Question 137

Question 137

Multiple Choice

What is the [CH3CO2-]/[CH3CO2H] ratio necessary to make a buffer solution with a pH of 4.34?
Ka = 1.8 × 10-5 for CH3CO2H.


A) 0) 39:1
B) 0) 91:1
C) 1) 09:1
D) 2) 5:1

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