Name:

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Date:

E3@U @UEflGEIntermolecular Forces

@U41 Reading Assignmentead pages 238-247

1. With use of a diagram, explain why carbon dioxide is not a polar molecule but water is a polarmolecule even though they both have polar covalent bonds.

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2. Copy Table 4.7: Molecular Shapes and Polarities.

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3. Identify the difference between INT,QAMOLECL/LA,Q and INTERMOLECULAR forces.iç +O rvç +hot4 rrn Corn

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4. Complete the following T-chart, by classifing the following forces as either intramolecular orintermolecular: dipole-dipole, dipole-induced dipole, dispersion, electrostatic, hydrogenbonding, ion-dipole, ion-induced dipole, metallic, non-polar covalent, polar covalent, purecovalent

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5. With reference to a solution of hydrochloric acid, explain what a dipole-dipole force is.-. —cAipoIcic$L

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6. How is it possible that dipole forces could differ in strength?

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With use of a diagram, illustrate the ion-dipole forces that allow salt, NaCI, towater.

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10. bifferentiate between dipole-induced dipole and ion-induced dipole forces and identify, withuse of a diagram, which force applies when oxygen gas dissolves in a sodium chloride solutioncompared to cj solutjon Qf hydrobromic acid.

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7. Explain what hydrogen bonding is.

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8. H-bonds occur when one of three specific intramolecular, polar covalent bonds are present.Rank the following strengths of H-bonds from strongest to weakest and explain your ranking.

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