The titration of a 20.0- mL sample of an H2SO4 solution of unknown concentration requires 22.47 mL of a 0.160 M KOH solution to reach the equivalence point.
What is the concentration of the unknown H2SO4 solution?

I am getting 0.899 no matter what I way I do it and the answer is not being accepted. What is the correct answer?



Answer :