Answer to Question #202983 in General Chemistry for Phohlo

Question

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?

Answer 1

Millimeters of HCl required =482mL