Chemical Bonding I: Lewis Theory Chemistry: A Molecular Approach, 1st Edition Nivaldo J. Tro Chapter 9 Chemical Bonding I: Lewis Theory
Tro Chemistry: A Molecular Approach Which of the following compounds will have the highest magnitude lattice energy value? KBr NaBr LiBr RbBr All are the same. There is not enough information to compare. Tro Chemistry: A Molecular Approach
Tro Chemistry: A Molecular Approach Which of the following compounds will have the highest magnitude lattice energy value? KBr NaBr LiBr RbBr All are the same. There is not enough information to compare. Tro Chemistry: A Molecular Approach
Tro Chemistry: A Molecular Approach Calculate the percent ionic character of a diatomic molecule with a bond length of 145 pm that has a dipole moment of 5.2 D. 52 % 45 % 75 % 70 % 85 % Tro Chemistry: A Molecular Approach
Tro Chemistry: A Molecular Approach Calculate the percent ionic character of a diatomic molecule with a bond length of 145 pm that has a dipole moment of 5.2 D. 52 % 45 % 75 % 70 % 85 % Tro Chemistry: A Molecular Approach
Tro Chemistry: A Molecular Approach Which of the following sets gives the correct formal charges for the elements in the Lewis structure below? S: –2 C: –4 N: –3 S: +6 C: +4 N: +5 S: +1 C: 0 N: –1 S: 0 C: 0 N: –1 Tro Chemistry: A Molecular Approach
Tro Chemistry: A Molecular Approach Which of the following sets gives the correct formal charges for the elements in the Lewis structure below? S: –2 C: –4 N: –3 S: +6 C: +4 N: +5 S: +1 C: 0 N: –1 S: 0 C: 0 N: –1 Tro Chemistry: A Molecular Approach
Tro Chemistry: A Molecular Approach Using average bond energies, calculate ΔHrxn for the combustion of acetylene. Bond Bond Energy (kJ/ mol) C─H 414 C─C 347 C≡C 837 O═O 498 C═O in CO2 799 O─H 464 +1359 kJ –1359 kJ +7408 kJ –7408 kJ –510 kJ Tro Chemistry: A Molecular Approach
Tro Chemistry: A Molecular Approach Using average bond energies, calculate ΔHrxn for the combustion of acetylene. Bond Bond Energy (kJ/ mol) C─H 414 C─C 347 C≡C 837 O═O 498 C═O in CO2 799 O─H 464 +1359 kJ –1359 kJ +7408 kJ –7408 kJ –510 kJ Tro Chemistry: A Molecular Approach
Tro Chemistry: A Molecular Approach Rank the following in order of increasing bond polarity: H─F H─Br F─F Na─Cl H─F < H─Br < F─F < Na─Cl F─F < H─F < H─Br < Na─Cl H─Br < H─F < F─F < Na─Cl F─F < H─Br < H─F < Na─Cl Na─Cl < H─F < H─Br < F─F Tro Chemistry: A Molecular Approach
Tro Chemistry: A Molecular Approach Rank the following in order of increasing bond polarity: H─F H─Br F─F Na─Cl H─F < H─Br < F─F < Na─Cl F─F < H─F < H─Br < Na─Cl H─Br < H─F < F─F < Na─Cl F─F < H─Br < H─F < Na─Cl Na─Cl < H─F < H─Br < F─F Tro Chemistry: A Molecular Approach