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We performed an experiment in lab on pH titration. We titrated a 0.1033 M NaOH solution into an unknown concentration of a weak acid (25.00 mL). It also says the unknown acid will have a concentration of about 0.1 M. I already found the Equivalence point to be 23.5, the pKa to be 4.25 and the Ka to be 5.62 x 10^-5. I just need to figure out the unknown concentration of the weak acid.

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