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The best buffer system for maintaining a pH of 3.74 is: A. HCHO2/NaCHO2 B. HNO2 /...

The best buffer system for maintaining a pH of 3.74 is:

A. HCHO2/NaCHO2
B. HNO2 / NaNO2
C. HCN/NaCN

Answer is A: How do you find this answer?

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Answer #1

3 A & H-C-GH (weak and Na-o-c-H salt of weak and and strong base (North) B. HND (weak and) & NaNO2 [salt of w. At S.B] & HAN

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