Report Exp. 5.docx - Chemistry 121 Section B Exp 5...

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October 28, 2016Chemistry 121, Section BExp 5 – Separations and AnalysisTeam members: Anna Krylova, Becca EmgeSignatures: ___________ _____________Objective:The purpose of this experiment was to learn how to use paper chromatography to separate and identify the components in an unknown. Use physical properties to separate the components of mixtures. Use chemical properties to verify the separation took place.Hypothesis:Chromatography paper can be used to separate mixed chemicals.Results:Part A. Paper ChromatographyTable 5.1 (data)SampleDistanceFe3+4.4 cmCo2+3.4 cmCu2+1.5 cmMixture4.3 cm3.4 cm1.7 cmUnknown4.4 cm3.4 cmMobile Phase5.5 cmTable 5.2 (report)SampleRfFe3+0.8 Co2+0.6 Cu2+0.3 Mixture0.8 0.6 0.3
Unknown0.8 0.6 ID number of unknownCIdentity of ions in unknownFe3+, Co2+Discussion:In this experiment was made the separation and identification the components (metal ions) in an unknown, using the chromatography paper. The known metal ions travelled up different distances from the baseline (mobile-phase). Fe3+ = 4.4 cm, Co2+ = 3.4 cm, and Cu2+= 1.5 cm. All

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