Design a buffer that has a pH of 4.86 using one of the weakacid/conjugate base systems shown below. Weak Acid Conjugate BaseKa pKa HC2O4- C2O42- 6.4×10-5 4.19 H2PO4- HPO42- 6.2×10-8 7.21HCO3- CO32- 4.8×10-11 10.32 How many grams of the potassium salt ofthe weak acid must be combined with how many grams of the potassiumsalt of its conjugate base, to produce 1.00 L of a buffer that is1.00 M in the weak base? grams potassium salt of weak acid = ggrams potassium salt of conjugate base = g
