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.