Equal volumes of the following pairs of solutions are mixed. Which pair will produce a buffer solution? Select one____________
a. 0.050 M HCl and 0.050 M NaOH cross out O cross out
b. 0.15 M HCl and 0.20 M NH₃
c. 0.20 M HCl and 0.10 M NaCH₃COO
d. 0.20 M HCl and 0.20 M CH₃COOH cross out cross out cross out
e. 0.10 M HCl and 0.20 M Naci
f. None of these will produce a buffer solution. cross
