Dilution of Chemical Equations

Question

A chemist must dilute 46.7mL of 42.2μM aqueous zinc oxalate ZnC2O4 solution until the concentration falls to 16.0μM. He'll do this by adding distilled water to the solution until it reaches a certain final volume. Calculate this final volume, in liters. Be sure your answer has the correct number of significant digits.

Answer 1

(46.7mL)(42.2μM) = (x mL)(16.0 uM)

x = 125.5 mL x 1 L/1000 mL = 0.126 L ( sig.figs.)