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AP® Chemistry Lab #2: Beer's Law - Mass Percent of Copper in Brass



Students will design a laboratory procedure to analyze the amount of copper in brass using a spectrophotometer. Students identify the correlation among wavelength, absorbance, and concentration for each of three possible ions that may be obtained from brass: copper, zinc, and iron. The activity contains enough materials for 15 groups of students as well as a Teacher’s Guide and Student Study Guide Copymasters. This lab meets Big Idea 1, Investigation 2, and Primary Learning Objective 1.16.

SKU EVT-8102 Category


Kit includes:

50mL Cupric Nitrate 0.1M, 50mL Cupric Sulfate 0.1M, 50mL Ferric(III) Nitrate 0.1M, 50mL Ferric Sulfate 0.1M, 50mL Zinc Nitrate 0.1M, 50mL Zinc Sulfate 0.1M, 100mL Cupric Nitrate 0.4M, 100mL Nitric Acid 70%, 20g Brass Pellets

All you need:

Beakers (50mL), Graduated Cylinders (50mL), Pipets, Pipet Bulbs, Volumetric Flask (100ml), Test Tube Racks, Watch Glasses, Test Tubes, Wash Bottle, 96-well Reaction Plates, Distilled Water, Spectrophotometer w/ Cuvettes, Electronic Balance



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