Review Homework For Intermolecular Force And Phase Of Matter - Revised 2009

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Review Homework for IMF and Phase of Matter - Revised 2009

1. What is the hybridization of PCl₅, ____________________

2. If you replaced P (phosphorus) with N (nitrogen) in the above compound, can the compound exist and why? (Hint: subenergy levels)?

3. Write the symbol for a polar bond, _____________ and write down how you have memorized the direction of the symbol

______________________________________________________________________________

4. What are the cut-offs of deltaEN for ionic bonds ______________,

polar bond ______________, non-polar bond _____________

5. What is the phrase Mr. McLeod makes you memorize to help remember the type of molecular polarity of a compound/polyatomic ion?

6. List the species (e.g. ionic, metallic, polar, etc) from highest IMF to lowest IMF

____________________________________________

7. Which one of the following has the highest IMF and why (explain in space below), H₂O , CH₃CH₂OH, or NH₃.

8. Define evaporation including where and when does it occur?

9. Explain why the more detailed definition of Boiling point is the temperature where the vapor pressure of the liquid = atmospheric pressure.

10. Crude oil is a mixtures of compounds. Two of these compounds are hexane (C₆H₁₄) and octane (C₈H₁₈). What is the physical process called that separates these two liquid? What property is this physical process based on? Both of these substance have _________________ IMF. Which one has the higher IMF and why? Which one boils first?

11. In heating a substance from its solid through boiling away all the substance, the portion that requires the greatest amount of energy is _________________. In the space below, explain why.

12. Print out a copy of [Worksheet for Molecular Polarity] and complete the table for the following: 1) CCl₄ 2) BeCl₂ 3)CS₂ 4) NF₃

13. Print out a copy of [Worksheet for Comparing Boiling Point of Two Substances] and complete the table for the following: 1) H₂O vs. CH₄ and 2) CO vs. N₂.