A 25.00-mL sample of an unknown HClO4 solution requires titration with 22.62 mL of 0.200 M NaOH to reach the equivalence point

hclo4-solution

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A 25.00-mL sample of an unknown HClO4 solution requires titration with 22.62 mL of 0.200 M NaOH to reach the equivalence point. What would be the concentration of NaOH in the final solution if no reaction occurs? Report your answer to three decimal places.

Answer:

Molarity, m1v1=m2v2
molarity = m volume = v
v1 =22.62 m1=.2
v2=25+22.62
22.62*.2=(25+22.62)m2
solve for m2 to find .095