Question

A 25.00 mL sample of H3PO4(aq) requires 31.05 mL of 0.2410 M KOH for titration to the second equivalence point.
What is the molarity of the H3PO4(aq)?
bobpursley
WEll, you have titrated two of the protons..

.025*2Ma=.03105*.2410

solve for Molarity of the acid, Ma