CHAPTER+9_Drillnew

CHAPTER+9_Drillnew - CHAPTER 9_Drills/ Chemical Bonds 1. In...

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CHAPTER 9_Drills/ Chemical Bonds 1. In 15 words or less define the following with example as needed a) Ionic and covalent bond b) Duet and octet rule c) Expanded octet d) Lattice energy e) Non polar covalent, polar covalent, and ionic bonds f) Resonance structure 2. Use noble – gas spdf notation and Lewis symbols to represent the electron configuration of each of the following spdf notation Lewis symbol Potassium ion Sulfide ion Aluminum ion Chloride ion Magnesium ion Nitride ion Ar Cl S P Si Al Mg Na 3. Write the Lewis dot symbol for 4. Use Lewis symbols to represent formation of the ionic compound between a) Sodium and nitrogen atoms b) Barium and nitrogen atoms c) Aluminum and arsenic atom d) aluminum and oxygen atoms 5. Explain the following trends in lattice energy. a) MgO > MgCl 2 b) NaCl > RbBr > CsBr c) BaO > KF 6. Match the following compounds with their lattice energy: KI, LiF, MgF 2 , LiI 2961, 1046, 759, 645 kJ/mol
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7. Calculate the lattice energy of CaO (s), in kJ/mol, given the following data. ( Ans. -3400 kJ/mol ) Enthalpy of sublimation of Ca(s): 178 kJ/mol I 1 (Ca): 590 kJ I 2 (Ca) =1145 kJ/mol EA 1 (O) = -141 kJ/mol Bond energy of O 2 (g):: 489 kJ/mol
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This note was uploaded on 09/30/2011 for the course CHEM 161 taught by Professor Vacillian during the Spring '08 term at Rutgers.

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CHAPTER+9_Drillnew - CHAPTER 9_Drills/ Chemical Bonds 1. In...

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