Intermolecular Forces February 6, 2018 IMF Re-Teach Intermolecular Forces Learning Target: I CAN demonstrate understanding of AP-level Kinetics problems through practice

DO NOW (4 MIN) February 6, 2018 Learning Target: I can Practice intermolecular forces concepts through pair work Do Now: (on your DO Now Sheet) Draw NH3 Explain the difference between the N-H bond in NH3 and Hydrogen bonding Learning Target: I CAN demonstrate understanding of AP-level Kinetics problems through practice

Reminder Intermolecular Forces are not break covalent bonds February 5, 2018 Reminder Intermolecular Forces are not break covalent bonds Boiling, melting break INTERMOLECULAR FORCES not covalent bonds 3) IMF  attraction  B.P  M.P  Viscosity  V.P 4) LDF increases with increased surface area and increased size due to POLARIZABILITY Learning Target: I CAN Practice, and articulate redox and kinetics reactions through review stations

True / False February 5, 2018 Solve the True / False Question connected with your group name: 3 minutes, be prepared to share Amy, Aminata, Nsikak 2) Gilda, Kathy, Robin 3) Shawn, Prabhleen, Claire 4) Ramouna, Ariel, Jason Nathaniel, Afra, Javaughn 6) Samantha, Miguel, Diamond 7) Mercy, Mariam, Zahra 8) Maryam, Mimi, Oliver, Michael Learning Target: I CAN Practice, and articulate redox and kinetics reactions through review stations

True / False February 5, 2018 1. Liquid water is placed in a jar, which is then sealed. Unless water vapor is also added before the jar is sealed, a dynamic equilibrium between the liquid and vapor phases cannot be attained. 2. At an atmospheric pressure of 700 mm Hg, water boils at 97.7°C. This temperature is termed the boiling point of water at 700 mm Hg of pressure. 3. The normal boiling point of water is the temperature at which the vapor pressure of liquid water equals the atmospheric pressure. Learning Target: I CAN Practice, and articulate redox and kinetics reactions through review stations

True / False February 5, 2018 4. At 20°C alcohol tends to “wet” or spread out on a piece of wax paper more readily than water. From this observation we can say that at 20°C alcohol has a lower surface tension than water. 5. In general, the larger the intermolecular forces existing between molecules, the lower the temperature at which a liquid is converted to a solid at 1 atm of pressure. 6. CO (s) will sublime completely to form CO (g) at any temperature below its triple point providing the pressure above the solid phase is always below the equilibrium vapor pressure. Learning Target: I CAN Practice, and articulate redox and kinetics reactions through review stations

True / False February 5, 2018 7. We should expect the critical temperature of HCl to be higher than that of CH4 . 8. The polarizability of CCl should be larger than that of CH4 . Learning Target: I CAN Practice, and articulate redox and kinetics reactions through review stations

Multiple Choice 17 minutes: February 5, 2018 17 minutes: Solve all 10 multiple choice questions independently Show your work Draw Lewis dot structures Learning Target: I CAN Practice, and articulate redox and kinetics reactions through review stations

Multiple Choice 10 minutes: February 5, 2018 10 minutes: - In your groups, discuss and come to a consensus regarding answers for each question Learning Target: I CAN Practice, and articulate redox and kinetics reactions through review stations

Multiple Choice February 5, 2018 9. Which type of crystalline solid is SO2 most likely to form? 10. Which of the following substances should have the highest normal boiling point? 11. In C6H5Cl, chlorobenzene, which of the following intermolecular forces operate in the liquid phase: (1) ion-ion (2) ion-dipole (3) dipole-dipole (4) London dispersion? Which of the following substances crystallizes as a molecular solid? 13. Which of the following substances should have the highest melting point? Learning Target: I CAN Practice, and articulate redox and kinetics reactions through review stations

Multiple Choice February 5, 2018 14. Which of the following compounds should have the highest heat of sublimation? 15. Which of the following represents the correct order of increasing boiling points for CCl , Cl , ClNO, N ? 16. The vapor pressure of a liquid will decrease if 17. Which statement about ICl and Br is true? 18. Which substance should exhibit hydrogen bonding in the liquid phase? Learning Target: I CAN Practice, and articulate redox and kinetics reactions through review stations

Short Answer In your groups, complete questions 19 - 25 February 5, 2018 In your groups, complete questions 19 - 25 Learning Target: I CAN Practice, and articulate redox and kinetics reactions through review stations

Short Answer February 5, 2018 19. What type of intermolecular forces are exhibited between each of the following? Explain. (a) H2O and CH3OH (b) CaCl2 and benzene (c) NaCl and H2O Learning Target: I CAN Practice, and articulate redox and kinetics reactions through review stations

Short Answer February 5, 2018 20. H2Te has a higher boiling point than SnH4 . Why? Do any of these substances exhibit hydrogen bonding? Explain. Learning Target: I CAN Practice, and articulate redox and kinetics reactions through review stations

Short Answer February 5, 2018 21. Water boils at 71°C on top of Mt. Everest (8848 m above sea level) and at 86°C on top of Mt. Whitney (4418 m above sea level). Why does water boil at a higher temperature on Mt. Whitney than on Mt. Everest? Learning Target: I CAN Practice, and articulate redox and kinetics reactions through review stations

Short Answer February 5, 2018 22. Rank the following in expected order of increasing critical temperatures: NH , Ar, and CO2 . Explain. Learning Target: I CAN Practice, and articulate redox and kinetics reactions through review stations

Short Answer February 5, 2018 23. Should ionic salts in water increase the surface tension of aqueous solution above the value for pure water? Learning Target: I CAN Practice, and articulate redox and kinetics reactions through review stations

Short Answer February 5, 2018 24. Explain why methanol (CH3OH) has a higher normal boiling point and a higher normal melting point than methylfluoride (CH3F), given the following data: Learning Target: I CAN Practice, and articulate redox and kinetics reactions through review stations

Short Answer February 5, 2018 25. A heating curve shows the change in temperature of a substance as a function of the time it is heated. It is like a phase diagram, but instead of pressure as one of the axes, time is plotted. Figure 11.3 shows an idealized heating curve for a substance at a constant pressure of 1 atm beginning with a solid at a low temperature. Explain what physical changes in the substance are occurring in the regions from points A to B, B to C, C to D, D to E, and E to F. What phases are present at temperatures x and y? Learning Target: I CAN Practice, and articulate redox and kinetics reactions through review stations

Remainder Complete the remainder of questions in your groups. February 5, 2018 Complete the remainder of questions in your groups. Anything you do not complete is DUE TOMORROW. Learning Target: I CAN Practice, and articulate redox and kinetics reactions through review stations

EXIT TICKET (3 MIN) ON A SEPARATE SHEET OF PAPER: February 6, 2018 EXIT TICKET (3 MIN) ON A SEPARATE SHEET OF PAPER: What are the requirements for hydrogen bonding to occur? Learning Target: I CAN demonstrate understanding of AP-level Kinetics problems through practice