12.2: An Investigation OF Intermolecular Forces - Pre-Lab

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PRE-LAB QUESTIONS

Name ___________________

Define the following terms:

Part A: Intermolecular forces

Part B: London dispersion forces

Part C: Dipole-dipole

Part D: Hydrogen bonding

Match and write the correct intermolecular force (London dispersion force, dipole-dipole, or hydrogen bonding) next to each description.

Part A: Intermolecular force that is present when hydrogen is directly bonded to oxygen, nitrogen, or fluorine:

Part B: The strongest of the intermolecular forces:

Part C: The weakest of the intermolecular forces:

Part D: The most important intermolecular force present in HCl:

Part E: Intermolecular force based on a temporary attractive force:

What are three factors that affect the strength of intermolecular forces?

Circle the best choice (indicated in the parenthesis) for each question:

Part A: Substances with stronger intermolecular forces tend to have (higher/lower) boiling points and evaporate (more readily/less readily) than substances with weaker intermolecular forces.

Part B: Substances with similar intermolecular forces tend to be (miscible/immiscible) with each other.

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