Some Exercises Reflecting Green Chemistry Concepts.

Three exercises related to green chemistry are presented. In the first exercise students compare two methods to prepare aluminum hydroxide and find a new method that can save more feedstock. The second exercise has students selecting a process that reflects the atom economy concept in three methods of preparing Cu(NO3)2. In the third exercise students determine the most reasonable ratio of stoichiometry map for maximum utilization of FeS to prepare Na2S2O3•5H2O. Through these exercises, students learn the effect of green chemistry concepts.