2CLabManual201303

Each reagenttest solution should have its own dropper

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Unformatted text preview: n damage. PROCEDURE Work in Pairs on this experiment. Part I. Qualitative Analysis – Analysis of a Known Solution Setup 1. All glassware must be kept scrupulously clean. Each reagent/test solution should have its own dropper. 2. Start a hot water bath in a 400mL beaker (1/3-full of water). 3. Set aside another beaker to serve as a waste container. 4. Make a 3% H2O2 solution. (Dilute the 30% H2O2 stock solution by a factor of 10 using deionized H2O.) Store this solution in a clean test tube and supply with a plastic pipet. 5. Obtain about 5mL of each of the following: 6M NaOH and 6M HNO3. Store these in clean test tubes and supply each with a plastic pipet. Making the Known Solution 1. To make your known solution, combine 1 mL of each of the following metal nitrate solutions in a round-bottom test tube: Ca2+, Co2+, Cr3+, Fe3+, K+, Mn2+, Zn2+ 2. Be sure and note the colors of each individual solution in your Lab Notebook. Initial Separation of the Cr3+, Fe3+, K+, Mn2+, Zn2+ Ions 1. First transfer 1 mL of your cation so...
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