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Posted: **Wed May 18, 2022 11:12 am**

: 1 For This Experiment The Class Needs 450 0 Ml Of 0 150 M Cocl2 Solution But Only Cobalt Ii Chloride Hexahydrate Co 1 (51.73 KiB) Viewed 52 times

1. For this experiment, the class needs 450.0 mL of 0.150 M CoCl2 solution, but only cobalt(II) chloride hexahydrate, CoCl26H20, is listed in the stockroom. (a) Calculate the molar mass of CoCl2:6H20. (b) How many grams of CoCl2-6H20 are required to prepare 450.0 mL of 0.150 M CoCl2 solution? (c) Briefly explain how you will accurately prepare this solution.
If 15.0 mL of the solution prepared in No.1 (above) is diluted to 25.0 mL, what is the concentration of CoCl2 in the diluted solution? Calculate the absorbance of the diluted solution (in No.2) using the Beer's constant you obtained in this experiment.