24. Which of the following will not produce a buffered solution?
(A)100 mL of 0.1 M Na2CO3 and 50 mL of 0.1 M HCl
(B)100 mL of 0.1 M NaHCO3 and 25 mL of 0.2 M HCl
(C)100 mL of 0.1 M Na2CO3 and 75 mL of 0.2 M HCl
(D)100 mL of 0.1 M Na2CO3 and 50 mL of 0.1 M NaOH
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