In a titration, a 0.7529 gram sample of a mixture of solid C6H5COOH and solid NaCl is dissolved in water and titrated with 0.150 M NaOH. The equivalence point is reached when 24.78 mL of the base solution is added.
Calculate the following:
a) The mass, in grams, of benzoic acid in the solid sample
b) The mass percentage of benzoic acid in the solid sample