A 0.9161 g sample which contained monoprotic lactic acid, was dissolved in 75.0 ml of water and titrated to the equivalence point with 32.25 ml of a 0.1057 m NaOH solution.
a) how many moles of lactic acid were titrated?
b) was this a pure sample of lactic acid?
c) If the sample were not pure, calculate its percent purity