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Which Solution Containing an Equal Number of Moles of Each

Question 68

Multiple Choice

Which solution containing an equal number of moles of each of the substances is a buffer?

A) HCl and NaCl
B) HNO₂ and HNO₃
C) CH₃COOH and NaCH₃COO
D) H₂CO₃ and CO₃^2-
E) More than one of the solutions is a buffer.

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