2CLabManual201303

As the volume of solution in the casserole is reduced

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Unformatted text preview: inutes the volume of the cobalt solution should be reduced to one quarter of the original volume (you may want to use another casserole with the targeted volume of water for comparison). As the volume of solution in the casserole is reduced, a crust of crystals (like a thin slurry) will begin to form on the surface of the liquid. Do not allow the solution to completely evaporate from the casserole. Thus, you may have to add a few mL of deionized water to avoid this, but only add a minimum. You may also need to add small amounts of water to the beaker in order to maintain this volume of water while boiling. Question E: Write a balanced chemical equation for this process. The product is [Co(en) 2Cl2]Cl. 6. Carefully remove the casserole and place it in an ice bath. Let the casserole cool for 5 minutes and then add 4 mL of 95% ethanol to force more of the water soluble product to crystallize. It is important here that you allow the casserole to cool before rinsing your product with the 95% ethanol. Allow 5 more minutes for the product to fully crystallize. 7. While the crystals are forming in step 6, set up the vacuum filtrati...
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This note was uploaded on 04/09/2013 for the course CHE CHE 2C taught by Professor Nasiri during the Spring '07 term at UC Davis.

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