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Chapter 11 / Midterm Review

Chapter 11 / Midterm Review. Honors Chemistry Ms. Snarrenberg 2013. Question Types. Orbital Shapes Orbital Diagram Electron Configuration Noble Gas Configuration Q = -Q ( Tf and non- Tf ) Light equation problems x 3 Endo/ Exo practice Enthalpy Valence / Unpaired electrons

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Chapter 11 / Midterm Review

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  1. Chapter 11 / Midterm Review Honors Chemistry Ms. Snarrenberg 2013

  2. Question Types Orbital Shapes Orbital Diagram Electron Configuration Noble Gas Configuration Q = -Q (Tf and non-Tf) Light equation problems x 3 Endo/Exo practice Enthalpy Valence / Unpaired electrons Stoichiometry: Limiting Reactant Problem, % Yield Absorption / Emission Drawing E/λ/ν relationship

  3. Orbital Shapes Draw the shapes of the s, p and d orbitals

  4. Orbital Diagram Draw the orbital diagram for copper.

  5. Electron Configuration Give the long-hand electron configuration and the Noble Gas configuration for strontium.

  6. Energy/λ/ν As energy increases, wavelength ______________ and frequency ______________. The symbol for wavelength is _____ and the symbol for frequency is _____. Which has a higher frequency: ultraviolet light or radiowaves?

  7. Stoichiometry If 5.00 g of calcium carbide and 5.00 grams of water are reacted in the equation below, how much of the excess reactant will remain after the limiting reactant has been consumed? CaC2 + H2O  Ca(OH)2 + C2H2

  8. Answer CaC2 is the limiting reactant 2.18 g H2O will remain

  9. Light Equations What are the two light equations and the combined light equation? Give the numerical values for the constants in these equations.

  10. Light Equations What is the frequency of a photon with a wavelength of 620 nm? c = λν E = hν c = 2.998 x 108 m/s h = 6.6262 x 10-34 Js

  11. Answer 620 nm = 6.2 x 10-7 m ν = 4.18 x 1014 Hz

  12. Light Equations What is the energy of a photon with a wavelength of 3.7 x 10-8 m?

  13. Answer E = 5.4 x 10-18 J

  14. Absorption / Emission Draw a Bohr model diagram of an atom for the absorption of energy and the emission of energy in the form of light.

  15. Valence / Unpaired How many valence electrons and unpaired electrons does tin (Sn) have?

  16. Answer 4 valence electrons 2 unpaired electrons

  17. Calorimetry A 15.0 g sample of nickel is heated in a burner flame. It is dropped into a 200.0 g sample of water. The water rose from 26 ºC to 29 ºC. What was the temperature of the metal before it was placed in the calorimeter? (sNi = 0.440 J/g°C)

  18. Answer Ti = 400°C ***Bonus*** What does specific heat mean?

  19. Stoichiometry When a student heated 1.25 g of mercuric oxide in the lab, the student obtained 1.09 g of mercury. What is the percent yield of this student’s experiment? (Hint: what should the theoretical yield have been?) 2HgO  2Hg + O2

  20. Answer Theoretical yield: 1.16 g % Yield: 94.0%

  21. Enthalpy

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