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Chemical… JEOPARDY!

Chemical… JEOPARDY!. Chemical Jeopardy. Gases 100. Why do we not really care about Boyle’s, Charles’, or Avogadro’s gas constants? What are P 1 V 1 = P 2 V 2 , etc.? Chem is try. Gases 200.

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Chemical… JEOPARDY!

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  1. Chemical… JEOPARDY!

  2. Chemical Jeopardy

  3. Gases 100 Why do we not really care about Boyle’s, Charles’, or Avogadro’s gas constants? What are P1V1 = P2V2, etc.? Chem is try

  4. Gases 200 Consider a gas at constant temperature. Its initial volume was 1.5 L under 0.5 atm of pressure. If the pressure is increased to 1.7 atm, what will be the new volume? What is 0.44 L? Chem is try

  5. Gases 300 As a balloon rises into the atmosphere, the air around it cools from 21C to 10C. If the balloon began with a volume of 5.0 L, what will be the final volume, assuming that pressure remains constant? What is 4.81 L? Chem is try

  6. Gases 400 Air is pumped into a pneumatic press, increasing the volume from 0.25 L to 1.2 L. If the temperature and pressure on the press remain constant, and at the final volume 4.2 mols of air are found to be in the press, how much air must have been pumped in? What are 3.325 mol? Chem is try

  7. Gases 500 Surprise. 55.0mL of a 1.225M of KNO3 is diluted to 70.0mL, at which point 2.36g solid KNO3 are added, without a change in volume. This is the new molarity. What is 1.30M KNO3? Chem is try

  8. More Gases 100 What are the units of the gas constant? What are atm * L / mol * K? Chem is try

  9. More Gases 200 Calculate the volume of 125g O2 gas at 0.032 atm and 31°C. What is 3040 L? Chem is try

  10. More Gases 300 Consider a 3.5 L container filled with 0.5 mol N2 at 21°C. What will be the pressure of this gas on the container if the temperature is raised to 45°C? What are 3.73 atm? Chem is try

  11. More Gases 400 As a balloon rises into the atmosphere, the air around it cools from 21C to 15C and the pressure drops from 1.0 atm to 0.8 atm. Furthermore, due to leaks, 0.05 mol of air escape from the tie in the balloon. If the balloon began with a volume of 5.0 L, what will be the final volume? What is 0.47 L? Chem is try

  12. S’more Gases 500 A student fills a 1.0 L flask with a mixture of hydrogen and oxygen gases. To create the hydrogen, she reacted 2.5 g Zn with excess HCl to produce ZnCl2 and H2. To create the oxygen gas, she electrically separated 7.5 mL H2O in the following unbalanced reaction, H2O  H2 + O2 (ignore H2 generated here). What is the total pressure of these two gases on the flask if the room temperature is 21°C? What are 5.98 atm? Chem is try

  13. Lab Stuff 100 Phenolphthalein takes on this color when [OH-] > [H+] What is pink? Chem is try

  14. Lab Stuff 200 In a couple of good English sentences, including some reference to gas laws, this is why we raised and lowered the glass bottle in the Charles’ Law lab until the water level inside and out were equal. What is making the interior pressure equal to atmospheric pressure? Chem is try

  15. Lab Stuff 300 This is a decent description of what the heck was going on in that Charles’ Law lab. What is V1T2 = V2T1? Furthermore, something about water entering the container showing a change in volume. Chem is try

  16. Lab Stuff 400 This, in a couple of good English sentences with some accompanying equations, is how we were able to determine the temperature of a flame. The change in energy of the metal is equal to the change in energy of the water. That is, mcΔT for water = mcΔT for the metal. Chem is try

  17. Electrons and Ions 500 This is why Mr. P was so frustrated with the salt solubility lab, and this is what we expected (hoped?) to see. What are inconsistent or imprecise results? What is some semblance of a linear curve? Chem is try

  18. Lewis Structures 100 With the exception of some of the lighter atoms, all atoms must be associated with this many electrons in a proper Lewis structure What is eight electrons? Chem is try

  19. Lewis Structures 200 This phenomenon is responsible for our understanding of the electron distribution in benzene and the sulfate ion, among others. What is resonance? Chem is try

  20. Lewis Structures 300 This is the proper Lewis structure used to represent carbon dioxide. What is O=C=O ? Chem is try

  21. Lewis Structures 400 According to the proper Lewis structure for the thiocyanate ion, [SCN]-, there exists this type of bond between the carbon and nitrogen atoms. What is a triple bond? Chem is try

  22. Lewis Structures 500 Due to resonance, these are the two acceptable Lewis structures for the cyanate ion, [CNO]-. What are [C=N=O]- and [C-N≡O]-? Chem is try

  23. Bonds and Bonding 100 The owner of this Major League Baseball record: 762* Who is Barry Bonds? Chem is try

  24. Bonds and Bonding 200 When two atoms with unequal electronegativities share electrons in a bond, this kind of bond forms. What is a polar covalent bond? Chem is try

  25. Bonds and Bonding 300 Talk to me about Van der Waals forces. What are brief, weak, induced charges? Chem is try

  26. Bonds and Bonding 400 This many total electrons are shared between two atoms in the Cu(NO3)2 ionic compound. What are sixteen electrons? Chem is try

  27. Bonds and Bonding 500 Talk to me about why non-polar fats and oils will not readily dissolve in polar water. Answer: Why does like react with like? That is, why do non-polar molecules associate with other non-polars? Chem is try

  28. Potpourri 100 Grampa Simpson’s new hybrid car now gets 4.17 furlongs to the quart. This is the fuel efficiency of his car in kilometers per liter when 1 furlong = 7920 in, 1 in = 2.54 cm, 1 quart = 32 ounces, and 1 ounce = 29.57 mL What is 0.889 km/L Chem is try

  29. Potpourri 200 This element is formed when 235U gives off three alpha particles and later emits two beta particles. What is 223Ra (radium)? Chem is try

  30. Potpourri 300 On Superbowl Sunday, 25.0g of C2H6O react with excess oxygen in a Giants fan’s liver. This many grams of carbon dioxide are produced. What are 47.83g CO2? Chem is try

  31. Potpourri 400 An experiment that led to the formation of the field of organic chemistry involved the synthesis of urea, CN2H4O, by the controlled reaction of ammonia, NH3, and carbon dioxide. This is the theoretical yield of urea when 100.0g ammonia is reacted with 100.0g carbon dioxide. What is 136 g urea? Chem is try

  32. Potpourri 500 These are the five things that Mr. P really cares about in chem class. What are: Le’Chatelier’s Principle, resonance, free energy, carbon making four bonds, and things tending towards lower potential energies? Chem is try

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