Chemistry-
General
Easy

Question

The equilibrium constant for this reaction is approximately 10 to the power of negative 3 end exponent H P O subscript 4 end subscript superscript 2 minus end superscript left parenthesis a q right parenthesis plus H C O subscript 3 end subscript superscript minus end superscript left parenthesis a q right parenthesis rightwards harpoon over leftwards harpoon H subscript 2 end subscript P O subscript 4 end subscript superscript minus end superscript left parenthesis a q right parenthesis plus C O subscript 3 end subscript superscript 2 minus end superscript left parenthesis a q right parenthesis Which is the strongest conjugate base in this reaction?

  1. H P O subscript 4 end subscript superscript 2 minus end superscript left parenthesis a q. right parenthesis    
  2. H C O subscript 3 end subscript superscript minus end superscript left parenthesis a q. right parenthesis    
  3. H subscript 2 end subscript P O subscript 4 end subscript superscript minus end superscript left parenthesis a q right parenthesis    
  4. C O subscript 3 end subscript superscript 2 minus end superscript left parenthesis a q. right parenthesis    

The correct answer is: C O subscript 3 end subscript superscript 2 minus end superscript left parenthesis a q. right parenthesis

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