Chem 104     Pre-lab Homework #2     Summer 2004         20 Points

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What volume of 0.125M phosphoric acid solution, H₃PO₄, is required to neutralize a 25.00 mL sample of 0.121 M sodium hydroxide solution, NaOH?

H₃PO₄ + 3 NaOH ----> Na₃PO₄ + 3 H₂O