Beer's Law is applied most accurately when a calibration graph is used. To do so, several solutions of known concentration (the standards) are prepared, and the absorbance of each is measured.
A student prepared several five standard solutions of copper (II) acetate solutions to determine the molar extinction coefficient of copper (II) acetate at 625 nm and the concentration of an unknown solution copper (II) acetate solution. The student started with a 0.5000 M copper (II) solution and then prepared the other for solutions by dilution.
What is the formula used to prepare the solutions?
Show the calculations using the values stated above.