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Molar concentration of phosphoric acid in original stock

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Reference no: EM132410243

Consider the following reaction: H3PO4(aq)+3NaOH(aq)--- Na3PO4(aq)+3H2O(l)

Determine the molarity of the acid solution, if 10ml of phosphoric acid solution requires the addition of 17.5ml of a .200 M NaOH to reach the endpoint.

We obtained the above 10ml solution by diluting a stock solution using a 1ml aliquot and placing it into a 25ml volumetric flask and diluting to 25ml prior to removing the 10ml sample used above. what was the molar concentration of phosphoric acid in the original stock solution?

Reference no: EM132410243

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