Reference no: EM13699874

Problem- A rock sample containing Cu was chemically digested; the resulting solution was made up to 100 mL in a volumetric flask. 10 mL of this solution was treated with appropriate reagents to result in 20mL of colored solution. The absorbance of this solution was measured at 454 nm in a 1 cm cell. The resulting absorbance was 0.393. A blank carried through the same procedure gave an absorbance of 0.045. If molar absorptivity of the Cu-containing colored compound is 7900, what is the amount of Cu in the rock sample (in mg)?

This is the question for that you have provide expert solution