● 25 mL of the dissolved was measured, using a graduated cylinder and few of the dissolved Cobalt (II) Chloride Hexahydrate, was poured into test tube. The test tube was labeled with a tape, to signify 25 mL and the spectrophotometer was used to record the U-V visible ABS (absorbance spectrum) with the wavelength of 515.
● The 75 mL remaining solution was diluted with water, filling it to a 100 mL. Also, with a graduated cylinder 20 mL of these solution was measured and little was poured into a test tube. The test tube was labeled with a tape, to signify 20 mL and