Lab5 - Stoichiometric ratios 2 mol K 2 C 2 O 4*H 2 O 1 mol K 2 Cr 2 O 7 7 mol H 2 C 2 O 4*2H 2 O> 2 mol K 3[Cr(C 2 O 4 3*3H 2 O Limiting reagent

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1 Section: I02 Date of experiment performed: 02/16/09 Date Report prepared: 02/22/09 Name: Fletcher Dostie Partner's Name: Andrew Pak Experiment 5 : Synthesis of Metal Oxalate Compounds Chromium Oxalate MW g moles Limiting? % yield Potassium Oxalate monohydrate 184.231 1.050 5.70E-03 Potassium Dichromate 294.185 0.898 3.05E-03 Oxalic Acid 126.066 2.501 1.98E-02 Yes PRODUCT 487.396 2.708 5.56E-03 2.763 98.02 Copper Oxalate Potassium Oxalate monohydrate Copper(II) Sulfate Pentahydrate PRODUCT Cobalt Oxalate Oxalic Acid Cobalt Chloride hexahydrate PRODUCT Data/Calculations: (12 pts) Fill in for your compound only 100% Yield (g) K 2 C 2 O 4 *H 2 O K 2 Cr 2 O 7 H 2 C 2 O 4 *2H 2 O K 3 [Cr(C 2 O 4 ) 3 ]*3H 2 O K 2 C 2 O 4 *H 2 O CuSO 4 · 5H 2 O(s) K 2 [Cu(C 2 O 4 ) 2 *2H 2 O H 2 C 2 O 4 *2H 2 O CoCl 2 *6H 2 0 Co(C 2 O 4 )*2H 2 O
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2 Sample Equations: (35 pts) Limiting Reagent: 100% yield % yield NOTE: Use this area to show sample equations and calculations. Must use Equation Editor.
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Unformatted text preview: Stoichiometric ratios: 2 mol K 2 C 2 O 4 *H 2 O, 1 mol K 2 Cr 2 O 7 , 7 mol H 2 C 2 O 4 *2H 2 O -> 2 mol K 3 [Cr(C 2 O 4 ) 3 ]*3H 2 O Limiting reagent = H 2 C 2 O 4 *2H 2 O 5.70 × 10 − 3 mol 2 = 2.85 × 10 − 3 mol 1.98 × 10 − 2 mol 7 = 2.83 × 10 − 3 mol 3.05 × 10 − 2 mol 1.98 × 10 − 3 mol ⋅ 2 7 = 5.67 × 10 − 3 mol 5.67 × 10 − 3 mol ⋅ 487.396 g 1 mol = 2.763 g 2.708 g 2.763 g ⋅ 100 = 98.02 3 (15 pts) Hand draw all three products clearly showing octahedral or tetrahedral ligand arrangement (no Google or cut & paste) Can use some computer drawing software like Chem Draw if you have it....
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This note was uploaded on 04/16/2009 for the course CHEM 1312 taught by Professor Bottomley during the Spring '07 term at Georgia Institute of Technology.

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Lab5 - Stoichiometric ratios 2 mol K 2 C 2 O 4*H 2 O 1 mol K 2 Cr 2 O 7 7 mol H 2 C 2 O 4*2H 2 O> 2 mol K 3[Cr(C 2 O 4 3*3H 2 O Limiting reagent

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