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An unknown amount of acid can often be determined by adding an excess of base and...

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Chemistry

An unknown amount of acid can often be determined by adding anexcess of base and then \"back-titrating\" the excess. A 0.3471 gsample of a mixture of oxalic acid, which has two ionizable protonsand benzoic, which has one, is treated with 94. mL of 0.1060 MNaOH. The excess NaOH is titrated with 21.00 mL of .280 M HCl. Findthe mass % of benzoic acid.

Answer & Explanation Solved by verified expert
4.3 Ratings (698 Votes)
no of moles of HCl needed to titrate the excess NaOH 0280 M x 0021 L000588 moles no of moles of NaOH titrated 000588 moles moles    See Answer
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