Malic acid (C4H6O5) is one of the alpha hydroxy acid which is naturally found in apples.The reaction of HCl with sodium maleate malic acid and sodium Chlorite is according to the following reaction
HCl + C4H5O5H = C4H6O5 +NaCl
You have to prepare a maleate buffer, (Ka=3.908 × 10-4) using sodium maleate (M.W.=178.05 g/mol) and 0.200 M HCl. HOw many millimeters of HCl should you add to 250.00 mL of 0.300 M sodium maleate to produce a buffer solution of pH 3.37?
Millimeters of HCl required =482mL