[clauslop]

Hello! I am taking CHM1045 in Miami Dade Fl.Pleeease! help me to solve this one step by step.
If a solution of 0.750 g of CuSO4 * 5H2O in 80.0 mL of solution has an absorbance of 0.100, what is the absorbance of a solution of 1.200 g of CuSO4 * in 50.00 mL of solution? Show me the set up! Thanks.

[Winga]

By Beer's Law,

A = ebc

Absorbance = molar absorptivity x path length of the cell x conc. of the sample

The path length usually is 1cm.

You can find out the molar absorptivity from the first data, then use this molar absorptivity to find out the absorbance.