Review Homework For Intermolecular Force And Phase Of Matter - Revised 2015

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Review Homework for IMF and Phase of Matter - Revised 2015


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. Using your knowledge of IMF, explain why vegetable oil and water do not mix or do not dissolve in each other. Is that the correct words to use with these two substance? If not, what are/is the correct word(s)?







12. Substance A has a greater IMF than Substance B, would it "make sense" (from knowledge of IMF) that Substance A is a gas whereas Substance B is a liquid (both substance are at the same temperature)? Explain.








13. Using your knowledge of "metallic bonds" and "ionic bonds", explain in words and draw a picture of why metals are malleable and ionic compounds are not malleable (called brittle).












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

15. 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.


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