Co 2cl2 Synthesis Lab Report

In this experiment, 5.281g of trans isomers of [Co(en)2Cl2]Cl was synthesized from 12.249g of CoCl2▪6H2O. First, CoCl2▪6H2O was reacted with ethlenediamine (NH2CH2CH2NH2) that formed [Co(en)2(H2O)2]Cl. Then the [Co(en)2(H2O)2]Cl was reacted with H2O2 to change the cobalt’s charge to cobalt(III) from cobalt(II). Finally HCl was added into the solution to form [Co(en)2Cl2]Cl. The percent yield was 45.51%.To synthesis trans isomers of [Co(en)2Cl2]Cl, distilled water was first mixed with CoCl2▪6H2O, the solution color was changed to wine color. After ethlenediamine (NH2CH2CH2NH2) was added, the color of the solution changed to blood color, and kept its color until the solution was heated (formed brown spit). HCl was added into the solution, and