If the PKa of HCHO₂ Is 3

question 133

Multiple Choice

If the pKa of HCHO₂ is 3.74 and the pH of an HCHO₂/NaCHO₂ solution is 3.11,which of the following is TRUE?

• A) [HCHO₂] < [NaCHO₂]
• B) [HCHO₂] = [NaCHO₂]
• C) [HCHO₂] << [NaCHO₂]
• D) [HCHO₂] > [NaCHO₂]
• E) It is not possible to make a buffer of this pH from HCHO₂ and NaCHO₂.

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