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1AWS8 - the most polar P-F Ge-F As-F 5 Draw the Lewis...

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Chem. 1A Chapter 8 Worksheet 1. Predict the empirical formulas of the ionic compounds formed from the following pairs of elements Name each compound a. Li and N b. Ga and O c. Rb and Cl d. Ba and S 2. Write electron configurations for a. the cations Mg 2+ , K + , and Al 3+ . b. the anions N 3- , O 2- , F - , and Te 2- . 3. Use the following data to estimate H f ° for sodium chloride. 2Na(s) + Cl 2 (g) 2NaCl(s) Lattice energy -786 kJ/mol Ionization energy for Na 495 kJ/mol Electron affinity of Cl -349 kJ/mol Bond energy of Cl 2 239 kJ/mol Enthalpy of sublimation for Na 109 kJ/mol 4. Using only the periodic table, predict which bond in the following group will be
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Unformatted text preview: the most polar. P-F, Ge-F, As-F 5. Draw the Lewis structure for POCl 3 , which obeys the octet rule. 6. Write Lewis structures that obey the octet rule for the following species. Assign the formal charge for each central atom a. POCl 3 b. SO 4 2-c. ClO 4-d. PO 4 3-7. Draw the Lewis structure for ClF 3 . 8. Consider the following reaction: H 2 (g) + O 2 (g) H 2 O 2 (g) ∆ H = -153 kJ Given that the H 2 bond energy is 432 kJ/mol, the O 2 bond energy is 495 kJ/mol, and the OH bond energy is 467 kJ/mol, estimate the bond energy for the oxygen-oxygen single bond....
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