A solution of 0.314M KOH is used to neutralize 10.0mL H3PO4 solution.

H3PO4(aq) + 3KOH(aq) → K3PO4(aq) + 3H2O(l) If 29.3mL KOH solution is required to reach the endpoint, what is the molarity of the H3PO4 solution?

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