Question: Which solution is a buffer? (a) A solution that is 0.100 M in HNO 2 and 0.100 M in HCl (b) A solution that is

Which solution is a buffer?

(a) A solution that is 0.100 M in HNO2 and 0.100 M in HCl

(b) A solution that is 0.100 M in HNO3 and 0.100 M in NaNO3

(c) A solution that is 0.100 M in HNO2 and 0.100 M in NaCl

(d) A solution that is 0.100 M in HNO2 and 0.100 M in NaNO2

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