Question 1
Which one of the following combinations cannot function as a buffer solution?
◦ HCN and KCN
◦ NH
3 and (NH
4)
2SO
4◦ HNO
3 and NaNO
3◦ HF and NaF
◦ HNO
2 and NaNO
2Question 2
Which one of the following is a buffer solution?
◦ 0.40 M HCN and 0.10 KCN
◦ 0.20 M CH
3COOH
◦ 1.0 M HNO
3 and 1.0 M NaNO
3◦ 0.10 M KCN
◦ 0.50 M HCl and 0.10 NaCl