Posted by **Anonymous** on Monday, August 5, 2013 at 9:52am.

A 20.00−mL sample of an unknown HClO 4 solution requires titration with 22.92mL of 0.2200M NaOH to reach the equivalence point.

What is the concentration of the unknown HClO 4 solution? The neutralization reaction is:

HClO 4 (aq)+NaOH(aq)¨H 2 O(l)+NaClO 4 (aq)

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