0307 Intermolecular Forces By Lesley Myrick1

Topics: Chemical bonding, Atom, Intermolecular force Pages: 2 (75 words) Published: November 20, 2014
03.07 Intermolecular Forces By Lesley Myrick 1. Determine the electronegativity between the atoms of each molecule. Answer: H20: 3.5 – 2.1 = 1.4
CH4: 2.5 – 2.1 = 0.4
NH3: 3.0 – 2.1 = 0.9
Co2: 3.5 – 2.5 = 1.0

2. Identify the bond as either ionic or covalent.
H20: Covalent
CH4: Covalent
CO2: Covalent
NH3: Covalent

3. State whether the molecule is polar or non-polar.

H20: Polar
Co2: Nonpolar
CH4 Nonpolar
NH3: Polar

4. Identify the structure as having hydrogen bonding, dipole-dipole moments or London dispersion forces (LDF).

H20 : Hydrogen Bonding
CH4: LDF
CO2: LDF
NH3: Hydrogen Bonding
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