Part A

A 25.00 mL sample of an H2SO4 solution of unknown concentration is titrated with a 0.1322 M KOH solution. A volume of 40.22 mL of KOH was required to reach the equivalence point.

What is the concentration of the unknown H2SO4 solution?

Express your answer using four significant figures.

Part B

A 4.80 mL sample of an H3PO4 solution of unknown concentration is titrated with a 1.100102MNaOHsolution. A volume of 7.12 mL of the NaOH solution was required to reach the equivalence point.

What is the concentration of the unknown H3PO4 solution?

Express your answer with the appropriate units.