Using the Above Table,fill in the Blank with the Appropriate

question 65

Multiple Choice

Using the above table,fill in the blank with the appropriate integer (1 ,2,3,...) indicating the buffer and/or the letter indicating the formula below.
-In Buffer 2, the missing acid component is_______________________.

• A)H₃C₂O₄⁺
• B)HC₂O₄^-
• C)C₃H₄O₃^2-
• D)HC₃H₅O₃
• E)C₂H₃O₂^-
• F)H₂C₂H₃O₂
• G)C₃H₅O₃^-