A basic buffer solution can be prepared by mixing equal numbers of moles of
A. NH4Cl and HCl
B. NaCl and NaOH
C. Na2CO3 and NaHCO3
D. NaCH3COO and CH3COOH
A. NH4Cl and HCl
B. NaCl and NaOH
C. Na2CO3 and NaHCO3
D. NaCH3COO and CH3COOH