Workshop 6 - Enthalpy of sublimation of K(± ² ³(´ ² = 89 kJ/mol IE for K(´ ² ³(´ µ ¸ ¹ = 419 kJ/mol Dissociation of F 2 molecules(F

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Workshop #6 Chem 1A Fall 2010 1. Draw Lewis structures for the following molecules. Include all resonance structures, formal charges, and indicate the preferred structure for each molecule. a. boron tribromide, BBr 3 b. xenon tetrafluoride, XeF 4 c. acetate, CH 3 CO 2 1- d. sulfur trioxide, SO 3 e. phosgene, Cl 2 CO f. thiocyanate, SCN 1- g. phosphate, PO 4 3- 2. Determine the lattice energy for KF (s) given the following data:
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Unformatted text preview: Enthalpy of sublimation of K ( (±) ² ³ (´) ² ) = 89 kJ/mol IE for K ( (´) ² ³ (´) µ¶ · ¸ ¹ ) = 419 kJ/mol Dissociation of F 2 molecules (F 2 (g) →2F (g) ) = 79 kJ/mol EA for F ( º» (´) ² · ¸ ¹ ³ » (´) µ¹ ) = -238 kJ/mol Enthalpy of formation of KF (s) = -567.23 kJ/mol...
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This note was uploaded on 11/27/2010 for the course CHEM Chem 1A taught by Professor Benhafensteiner during the Fall '10 term at UC Irvine.

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