(Answered) Find the ka of a weak acid given the following information

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Find the Ka of a weak acid given the following information. The concentration of the acid was found from the titration. PH=2.71, H+=10^-PH, Vab=25.0mL+22.03mL=47.03mL.

Cb=1.0mol/L, Cab=? , Vb= (22.1ml+22.1ml+21.9ml)/3. Base volumes are 22.1mL, 22.1mL and 21.9mL. Va=25.0mL, Ca=(Cab)(Vab)=22.03mL. Va=25.0mL

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