A 30.00-mL sample of an unknown H 3 PO 4 solution is titrated with a 0.100 M

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A 30.00-mL sample of an unknown H3PO4 solution is titrated with a 0.100 M NaOH solution. The equivalence point is reached when 26.38 mL of NaOH solution is added. What is the concentration of the unknown H3PO4 solution? The neutralization reaction isH3PO4(aq) + 3 NaOH(aq)  3 HO(1) + Na3PO4(aq)

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