Hpost - Examining the Main Group HYDROGEN HYDROGEN What is...

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HYDROGEN What is its electronic structure? Examining the Main Group How does knowing this elp a chemist to help a chemist to understand AND perhaps more importantly XPLOIT its chemistry? EXPLOIT its chemistry? 1s 1 basic structural aspects
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HYDROGEN Examining the Main Group What species might it form? Key : wants to gain stability for its unpaired e- ia transfer of an e- nic species Formation of both H and H + can be facile depending on circumstances via : transfer of an e Ionic species ± H 1s 2 , isoelectronic with He H shares a periodic property with the halogens , EA = -73 kJ/mol = 1312 kJ/mol H shares a periodic property with the alkali metals , IE via : sharing of an e- Covalent species H shares a periodic property with the ± H + ± HX also isoelectronic with He halogens , EA applying the basic structural aspects.
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HYDROGEN Elemental or MOST PURE Form Examining the Main Group Abundant in the niverse H 2 (g) universe Not found in significant amounts on earth atmosphere < 1ppm ± Nevertheless Important Industrially what really happens? can you explain it?
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HYDROGEN Examining the Main Group Industrial Uses of H (g) Metal 2 (g) Production Hydrodesulfurization DS H 2 O 2 H 2 HDS Margarine NH 3 ertilizers) N 2 Fuel Cells (Fertilizers) Synthetic Crude CH 3 OH Rocket Fuels where do we use it?
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HYDROGEN MOST PREVALENT as constituent of covalent compounds with Examining the Main Group other main group non-metals H 2 O CH 4 NH 3 HF For use as synthetic precursors for transfer of H are compounds that are small or closest to being pure! ie H obtained via steam reforming of CH 4 00 000 o CH 4 (g) + H 2 O(g) ⎯→ CO(g) + 3 H 2 (g) 800-1000 C Ni Catalyst 10-15 atm Most compounds containing What really happens? Can you explain it?
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This note was uploaded on 01/10/2010 for the course CHEMISTRY CHEM 2080 taught by Professor Mr.welson during the Winter '08 term at University of Calgary.

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Hpost - Examining the Main Group HYDROGEN HYDROGEN What is...

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