Posted by **john** on Tuesday, November 2, 2010 at 12:44am.

A 13.0 mL sample of an unknown HClO4 solution requires titration with 25.2 mL of 0.180 M to reach the equivalence point.

What is the concentration of the unknown HClO4 solution? The neutralization reaction is as follows:

HClO4 +NaOH ===>> H2O +NaClO4

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