Question

You add 1.00 g of a solid weak acid to 100 mL of water, then titrate with 0.100 M NaOH solution. The pH at the half equivalence point is 3.85. Which of the acids in the Table of Weak Acids (found in the content section) most likely matches your unknown?

Answer 1

@aaronq ??

Answer 2

at the half-equivalence point, pH=pKa