Question

In the laboratory you dilute 5.53 mL of a concentrated 3.00 M perchloric acid solution to a total volume of 100 mL. What is the concentration of the dilute solution?

_________ M.

Answer 1

n(HClO₄)=$\dfrac{5.53mL*3mol}{1000mL} = 0.01659 moles$

c=$\dfrac{0.01659moles}{0.1L} = 0.1659mol/L$