#Chem 161-2007 exam III review session

#Chem 161-2007 exam III review session - CHEM 161 HOURLY...

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CHEM 161 HOURLY III REVIEW SESSION NOV 18 & 19, 2007 DR. ED TAVSS Part I: Sunday, Nov. 18, 8 – 10 PM, Hck 138 Chapters 7 & 8. Part II. Monday, Nov. 19, 8 – 10 PM, RAB 001 Chapter 9 Chem 161-2007 exam III review session 1
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REVIEW TOPICS CHAPTER 7 – ATOMIC STRUCTURE LIGHT AND MATTER QUANTUM MECHANICS/ WAVE-PARTICLE DUALITY/DEBROGLIE THEOREM PLANCK’S EQUATION/ EINSTEIN’S PHOTOELECTRIC EFFECT/ HYDROGEN ATOM AND THE BOHR MODEL QUANTUM MECHANICS, QUANTUM NOS. and ORBITALS CHAPTER 8 – ELECTRONIC CONFIGURATION, ATOMIC PROPERTIES, AND PERIODIC TABLE POLYELECTRONIC ATOMS -- Aufbau -- Magnetic properties (Paramagnetism & Diamagnetism) PERIODIC TABLE AND PERIODIC PROPERTIES -- Atomic and ionic radius -- Ionization energy -- Electron affinity -- Oxidizing and reducing agents -- Basic and acidic oxides -- Electronegativity (Chapter 9) CHAPTER 9 – CHEMICAL BONDS BOND POLARITY AND DIPOLE MOMENTS -- Ions and ionic bonding BOND ENERGIES OF IONIC BOND FORMATION -- Lattice energies (Born-Haber cycle) LEWIS STRUCTURES FORMAL CHARGE RESONANCE STRUCTURES BOND ENERGY/LENGTH UNSATURATED HYDROCARBONS Chem 161-2007 exam III review session 2
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CHAPTER 7 LIGHT AND MATTER ET: Describe light wave as electromagnetic radiation with a magnetic field, an electric field, and having a speed of 3 x 10 8 m/s. Draw undulating light curve to define λ, υ and amplitude. Relate light to graph on next page. ET: Discuss 3 equations from formula page and show that knowing one parameter gives the other two Wavelength = λ = distance/cycle = distance Frequency = υ = cycles/s = cycles s -1 = s -1 = Hz E photon = h υ ET: Use water waves to show relationship between high frequency and high energy; also use graph on next page. υ = c/λ E = hc/λ h = 6.626 x 10 -34 Js = 6.626 x 10 -34 kgm 2 s -2 s = 6.626 x 10 -34 kgm 2 s -1 c = 3 x 10 8 m/s DeBroglie theorem: λ= h/mv ET: Wave-particle duality; tie into E = hυ m is the mass in kg v = velocity in meters per second Bohr atom: ΔE = -B((1/n f 2 ) - (1/n i 2 )) B = 2.179 x 10 -18 J Einstein’s photoelectric effect Total Energy = Energy threshold + Energy kinetic Energy total = h υ threshold + h υ kinetic energy Chem 161-2007 exam III review session 3
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Chem 161-2007 exam III review session 4
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Similar to: CHEM 161- 2002 FINAL EXAM + ANSWERS, prob 6 CHAPTER 7 - LIGHT, ATOMIC STRUCTURE & PERIODIC TABLE TRENDS LIGHT AND MATTER H&P 37mod. Calculate the energy, in joules, of light that has 655-nm wavelength? E = hυ υ = c/λ E = hc/λ = ((6.626x10 -34 Js)x(3 x 10 8 m/s))/(655 nm x (1 x 10 -9 m/nm)) = 3.03 x 10 -19 J Chem 161-2007 exam III review session 5
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Similar to: CHEM 161-2001 SUMMER EXAM II + ANSWERS, prob 12 CHAPTER 7 - LIGHT, ATOMIC STRUCTURE & PERIODIC TABLE TRENDS LIGHT AND MATTER H&P 31. What is the wavelength and in what part of the electromagnetic spectrum is a broadcast frequency of 725 kHz found? 725 kHz x (1000 Hz/kHz) x (1s -1 /Hz) = 725000s -1 υ = c/λ λ = c/υ λ = (3 x 10 8 ms -1 /725000s -1 = 4.14 x 10 2 m 4.14 x 10 2 m = radio waves Chem 161-2007 exam III review session 6
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QUANTUM MECHANICS ET: Discuss quantum mechanics.
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