Suppose a 026 M aqueous solution of phosphoric acid H3PO4 is

Suppose a 0.26 M aqueous solution of phosphoric acid (H3PO4) is prepared. Calculate the equilibrium molarity of HPO4 find information on the properties of phosphoric acid in the ALEKS Data resource. Round your answer to 2 significant digits . You\'lI x10

Solution

for triprotic acid H3A . A2- concentration always equal to Ka2

for H3PO4 Ka2 value = 6.2 x 10^-8

so concentration of HPO42- = 6.2 x 10^-8 M

imp note :

please check once Ka2 of H3PO4 i wrote is matched with your ALEKS table . if it is different from above i wrote just enter which is in your ALEKS value .