Inorganic Exp 3

Inorganic Exp 3 - 2 C 2 O 4 standard solution Buret(2 6 M...

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Experiment #3 Determination of the Composition of Cobalt Oxalate Hydrate Chem 1312 Section: D1 Date Performed: February 1, 2006 Date Due: February 7, 2006 Submission Date: February 7, 2006 James, 1
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Introduction: In this experiment, the cobalt oxalate hydrate from Experiment 1, as well as the standard solution of sodium oxalate and the non-standard solution of potassium permanganate from Experiment 2 were used to determine the percentage of cobalt and the percentage of oxalate in the cobalt oxalate hydrate sample. When the cobalt oxalate hydrate is heated, water and other products are yielded and released. That is why the titrations are necessary to provide data to calculate the percentages of the components of the cobalt oxalate hydrate. Procedure: Equipment: Reagents: Analytical balance .02 M Potassium permanganate KMnO 4 Bunsen Burner .1 M Sodium oxalate, Na
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Unformatted text preview: 2 C 2 O 4 , standard solution Buret(2) 6 M Sulfuric acid H 2 SO 4 Buret clamp (2) Crucibles (2) Hot plate Litmus paper Mortar and pestle Tongs 500-mL flask 250-mL Erlenmeyer flask The procedures for this lab can be found on page 31 of Laboratory Experiments for General Chemistry Spring 2006-Summer 2006; Toby F. Block, George M. McKelvy. There were a few deviations from the procedures: 1. Instead of measuring 10 to 15 mL of standard .1 M sodium oxalate solution, we were told to use just 5 mL. 2. Instead of weighing .3 g of the cobalt oxalate hydrate, we were told to use only .2 g. Data: see attached excel sheet. Results: see attached excel sheet Sample Calculations: see attached sheet Discussion: Conclusion: The empirical formula of our cobalt oxalate hydrate sample is Co 3 (C 2 O 4 ) 2 * H 2 O....
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Inorganic Exp 3 - 2 C 2 O 4 standard solution Buret(2 6 M...

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