CHEM102 Lecture Notes - Intramolecular Force, Intermolecular Force, Covalent Bond

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bronzecoyote328

15 Aug 2014

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University of Alberta

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Chemistry

Course

CHEM102

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All

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CHEM102 Full Course Notes

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Introductory university chemistry i (chem 101 / 103) Two types of molecular forces: the intramolecular forces are the bonding forces exist within a molecule which influence the chemical properties of the substance. It is relatively strong when compared with intermolecular forces. (about 150 . 1100 kj / mol for covalent bonds: the intermolecular forces are forces between molecules / ions. It is relatively weak. (usually about 0. 05 40 kj / mol) It accounts for physical properties of matters (solid, liquid and gas) Ion- ion force (ionic bonding: covalent force (covalent bonding, metallic force (metallic bonding)

Related Questions

I don't understand how to compare these forces to the around binding forces mentioned above

Which statement about hydrogen bonding is true?a) Hydrogen bonding is the intermolecular attractive forces between two hydrogen atoms in solution.b) The hydrogen bonding capabilities of water molecules cause CH3CH2CH2CH3 to be more soluble in water than CH3OH.c) Hydrogen bonding of solvent molecules with a solute will not affect the solubility of the solute.d) Hydrogen bonding interactions between molecules are stronger than the covalent bonds within the molecule.e) Hydrogen bonding arises from the dipole moment created by the unequal sharing of electrons within certain covalent bonds within a molecule.

a) Which one of the following is expected to have the highest vapor pressure at room temperature? ( Ethanol bp = 78 degrees Celsius, Methanol bp =65 degrees Celsius, Diethyl ether bp = 35 degrees Celsius, Acetone bp = 56 degrees Celsius )

b) Which of the following species are NOT capable of hydrogen bonding as pure substances? ( C₃H₈, CH₃COOH, CH₃CH₂OH, HCI )

c) True or False: Liquids that have strong intermolecular forces generally have higher viscosities than those that have weak intermolecular forces.

d) Graphite crystallizes as what type of crystal? ( Ionic, Covalent, Molecular, Metallic )

e) Which one of the following substances crystallizes as a molecular crystal? ( NaCI, Na, SiO₂, CO₂ )

f) Which one of the following statements is NOT true in regards to water? ( Water has a high heat capacity, Water has an unusually high boiling point for such a small molecule, Water can form hydrogen bonds, Ice is more dense than liquid water, Water is a polar molecule )

g) List the type(s) of intermolecular forces that exist in each of the following substances:

CH₃CI

H₂O

KCI

CH₄

CHEM102 Lecture Notes - Intramolecular Force, Intermolecular Force, Covalent Bond

CHEM102 Full Course Notes

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