Question 1
Commercial perchloric acid is 70.0% by mass, HClO
4(aq), and has a density of 1.67 g/mL. Calculate the molarity of perchloric acid in the solution.
◦ 11.6 M
◦ 1.17 M
◦ 23.7 M
◦ 16.5 M
Question 2
Commercial perchloric acid is 70.0% by mass, HClO
4(aq). Calculate the mole fraction of perchloric acid in the solution.
◦ 0.295
◦ 0.420
◦ 0.705
◦ 0.697