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Chemy 101, Experiment 8 Data Sheet, Separation of a Mixture by Paper Chromatography Student name: ………………….………… I.D#: …………. Sec No.: ………… Aim: Results & Calculation: 1. Color of spots: Cu2+……… Ni2+………… Fe3+………… 2. Ion requiring no development is ………………… 3. Ammonia develops a ………………… color. 4. Dimethylglyoxime develops a ……………….. color. 5. Ring front distances for knowns are: solvent: 77 ……… mm; 8. Cu2+ …40……….. mm; Ni2+ …22……. mm ; Fe3+……58…….mm. R f= distance travelled by spot / distance travelled by solvent 9. 10.Rf values for knowns: Cu2+…………; Ni2+………… ; Fe3+……… Unknown label No 3…… 1 . Ring front distances for unknowns: …20………mm ; …57.………mm ….……… ; ……….. 2 . Rf values for unknown : 3 . Ions present in unknown step 2 and step 10) …………………………(check which has similar Rf by comparing 4 . Observation on relative

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