18-11-2022
Chemistry

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A 32.00 mL sample of an unknown H3PO4 solution is titrated with a 0.140 M NaOH solution. The equivalence point is reached when 25.24 mL of NaOH solution is added.

The neutralization reaction is

H3PO4(aq)+3NaOH(aq)→3H2O(l)+Na3PO4(aq)

What is the concentration of the unknown H3PO4 solution?

Express the molarity to three significant figures.

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