A chemist prepares a solution of copper(II) sulfate by measuring out 45.0 μmol of copper(II) sulfate into a .450 ml volumetric flask and filling the flask to the mark with water.

Question

Calculate the concentration in μmol / L of the chemist's copper(II) sulfate solution. Round your answer to 3 significant digits.

= ____ μmol / L

Answer 1

Concentration = 45.0 umol /0.450 ml x 1000 ml / L = 100,000 umol / L = 1.00x10⁵ um/L