What Is the [CH₃CO₂-]/[CH₃CO₂H] Ratio Necessary to Make a Buffer

Multiple Choice

What is the [CH₃CO₂-]/[CH₃CO₂H] ratio necessary to make a buffer solution with a pH of 4.44? K_a = 1.8 × 10^-5 for CH₃CO₂H.

A) 0.50:1
B) 0.94:1
C) 1.1:1
D) 2.0:1