Question: Which one of the following cannot act as a buffer solution? 1.0 M KCl and 1.0 M HCl 0.40 M HNO 2 and 0.10 NaNO

Which one of the following cannot act as a buffer solution?

1.0 M KCl and 1.0 M HCl

0.40 M HNO2 and 0.10 NaNO2

0.10 M HC2H3O2 and 0.10 MNaC2H3O2

0.20 M NH3 and 0.25 MNH4Cl

0.50 M HCN and 0.10 NaCN

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