Which of the Following Is a Buffer System

question 21

Multiple Choice

Which of the following is a buffer system?

• A)NaCl(aq)and NaNO₃ (aq)
• B)HCl(aq)and NaOH(aq)
• C) H₂CO₃ (aq)and KHCO₃ (aq)
• D)NaCl(aq)and NaOH(aq)
• E) H₂O(l)and HCl(aq)

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