(a) To a 100 mL volumetric flask were added 4.80 g of sodium monohydrogenphosphate monohy-drate and 8.00 mL of a 6.00 M aqueous solution of hydrochloric acid, and the flask was filledto the calibration mark with water. What were the equilibrium concentrations of H3PO4,H2PO-, HPO-2, PO-3, and H+ in the resultant solution? Ka1 = 7.1x10-3, Ka2 = 6.3x10-8, and Ka3 = 4.2x10-13 for H3PO4.
(b) Is the resultant solution in Part a above a buffer solution?