CH204 Expt 5 part1 slides sp10

CH204 Expt 5 part1 slides sp10 - PRINCIPLES EXPERIMENT 5...

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1 EXPERIMENT 5 SYNTHESIS AND ANALYSIS OF A COMPLEX IRON COMPOUND Part 1: Synthesis 2 PRINCIPLES | A coordinate covalent bond occur when one atom donates both electrons to the covalent bond that is formed between two atoms. | E.g. Hydronium ions are formed when the electron deficient hydrogen ion covalently bonds to an electron pair from water. | The oxygen atom in the water molecule donates a lone pair of electrons to the hydrogen ion. H + + 3 PRINCIPLES | Another example of a coordinate covalent compound. | The nitrogen atom in the ammonia molecule donates a lone pair of electrons to the empty orbital in the boron atom. ____ (empty orbital) [He] ___ ___ ___ FFF 4 PRINCIPLES | Another example of a coordinate covalent compound. | AlCl 3 + AlCl 3 5 PRINCIPLES | Coordination complexes of transition metals. y d-transition metals can form coordinate covalent bonds to create large coordination complexes. Porphyrin ring is assembled from four pyrrole structures. Pyrrole structure hemoglobin 6 THREE-WEEK EXPERIMENTAL PROCESS | This week: Synthesis of a coordination compound called potassium oxalatoferrate salt. y K 3 [Fe(C 2 O 4 ) 3 ]•3H 2 O y potassium tris(oxalato)ferrate (III) trihydrate | Starting material →→→→ Product | Next weeks: Qualitative identification of the compound through quantitative analysis of oxalate and iron.
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7 WHAT IS POTASSIUM OXALATOFERRATE?
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This note was uploaded on 03/17/2010 for the course CH 204 taught by Professor Leytner during the Spring '08 term at University of Texas.

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CH204 Expt 5 part1 slides sp10 - PRINCIPLES EXPERIMENT 5...

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