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Experimen1 - Dmitriy Andreev Experiment#5 Pre-Lab...

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Zn 2+ Fe 3+ Co 2+ Ni 2+ Cu 2+ Unknown Dmitriy Andreev 5/12/2009 Experiment #5 Pre-Lab Stoichimoetric Equations: There are no chemical reactions. Mathematical Formulas: ∆=E = hv = hc/λ R f = fraction of column volume Reagents: Samples of metal ions (Zn 2+ , Fe 3+ , Co 2+ , Ni 2+ , Cu 2+ ) Acetone (CH 3 COCH 3 ) – polar solvent 6M Hydrochloric acid (HCl) Dimethylgloxime (DMG) Ammonia Ammonium sulfide Materials: Pencil Chromatography paper 600 mL beaker Aluminum foil Stapler Experimental Apparatus: 20 cm x x x x x x 1 0.5 cm 1 cm 10 cm Chromatography paper
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Dmitriy Andreev 5/12/2009 Procedure: 1. Obtain a piece of chromatograph paper with the approximate dimensions of 20cm by 10 cm. Using a pencil, draw lines a nd spot markers. Leave roughly 1 cm of space at the left and right hand sides of the paper. 2. Use a capillary tube to spot both the standard and unknown samples with pH=7 in the correctly labeled positions along the line drawn across the bottom of the paper. The spot should be no larger than 2mm in diameter. Make a note of the pH of the samples and the
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