What is the approximate pH at the equivalence point of a wea

What is the approximate pH at the equivalence point of a weak acid-strong base titration if 25 mL of aqueous formic acid requires 29.80 mL of 0.0567 M NaOH? Ka for formic acid = 1.8 x 10^-4

Moles OH- = 0.02980 L x 0.0567 M =0.00169 HCOOH + OH- >> HCOO- + H2O [HCOO-] = 0.00169 / 0.0548 L =0.0308 HCOO- + H2O <----> HCOOH + OH- K = Kw/Ka = 5.56 x 10^-11 = x^2 / 0.0308-x x = [OH-] =1.31 x 10^-6 M pOH =5.88 pH = 14 - 5.88 = 8.12