chem 10-9 - What is the wavelength of a photon that would...

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What is the wavelength of a photon that would break the F2 bond assuming the F2 bond energy is 154 kJ/mol? 154 kJ/mol J/molecule 2.56 x 10>-19 for one F2 bond (divide by 6.023 x 10>23 molecules/mole) E= hv = hc/ lambda Lambda = 778 (convert to nanometers) Polarilty. 0 non-polar covalent .1 to 1.5 polar covalent 1.5 to 3.0 ionic molecular structure and covalent bonding theories 1. valence shell electron pair repulsion theory VSEPR a. R.J. Gillespie in the 1950’s 2. valence bond theory= localized electron model a. involves the use of hybridized atomic oribitals b. L. pualing 3. KNOW MOLECULAR SHAPE 9valence bond theory and VESPR theory) Electron arrangements 1. linear 2. trigonal planar 3. tetrahedral 4. trigonal bipyramidal 5. octahedral 6. pentagonal bipyramidal predctin the molecular structures the strategy 1. draw the correct Lewis dot structure a. identify the central atom b. designate the bonding pairs and lone pairs of electrons on central atom 2. around the regions of “high electron density” on the central atom
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This note was uploaded on 09/23/2008 for the course CH 310M taught by Professor Iverson during the Fall '05 term at University of Texas at Austin.

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chem 10-9 - What is the wavelength of a photon that would...

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