Which of the following is the best choice below for preparation of a .10M buffer solution required to maintain a ph of 3 and WHY? Why aren't others suitable?
HC3H5O2/C3H5O2 ka=1.34x10-5
HC2O4-/C2O4- ka=5.42x10-5
HNO2/NO2- ka=7.10x10-4
NOCI-/OCI- ka=3.00x10-8