Chemistry Final

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Chemistry Final
2011-12-11 21:01:03

chapter 9 - 22
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  1. Which branch of chemistry deals with the mass relationships of elements in compounds and the mass relationships amond reactants and products in chemical reactions?
  2. Which of the following would be investigated in reaction stoichemistry?
    relative numbers of moles of reactants and products
  3. The coefficients in a chemical equation represent the
    relative numbers of moles of reactants and products
  4. A balanced chemical equation allows one to determine
    mole ratio of any two substances in a reaction
  5. In a chemical equation wA+xB yiels to yC+zD, if one knows the mass of A and the molar masses of A, B, C, and D one can determine
    the mass of any of the reactants or products
  6. The units of molar mass are
  7. Given the equation 3A+2B yields to 2C, the starting mass of A, and its molar mass, and you are asked to determine the moles of C produced, your first step in solving the problem is to multiply the given mass of A by
    (1 mol A/molar mass A)
  8. Acids generally release H2 gas when they react with
    active metals
  9. Acids react with
    bases to produce salts and water
  10. Which of the following is not an oxyacid?
  11. Compared with acids that have the suffiz -ic acids that have the suffiz -ous contain
    less oxygen
  12. Which acid is produced in the stomach?
    hydrochloric acid
  13. The traditional definition of acids is based on the observation of
  14. Which statement about Arrhenius acids is false?
    They increase the concentration of hydroxide ions in aqueous solution
  15. In water, hydroxides of Group 2 metals
    are all strong bases
  16. Many organic compunds, such as codeine, that contain nitrogen are
    weak bases
  17. Which of the following is a tripotic acid?
  18. Whose definition of acids and bases emphasizes the role of protons?
    Bronsted and Lowry
  19. How many conjugate acid-base pairs participate in a Bronsted-Lowry acid-base reaction?
  20. A Bronsted-Lowry acid is a
    proton donor
  21. A Lewis acid is
    an electron-pair acceptor
  22. Whose acid definition is the broadest
  23. A Lewis base is an
    electron-pair donor
  24. In the reaction represented by the equation HF+H2O yields to H3O+ +F-, a conjugate acid base pair is
    H3O+ and HF
  25. Another conjugate acid-base pair
    HF and F-
  26. The conjugate of a strong base is a
    weak acid
  27. An amphoteric species is one that reacts as an
    acid or base
  28. A salt is not
    a proton donor
  29. Which of the following is not a reactant in a neutralization reaction?
    a salt
  30. Which compound is produced by a neutralization?
  31. Pure water contains
    water molecules, hydronium ions, and hydroxide ions
  32. Pure water partially breaks down into charged particles in a process called
  33. What is the Concentration of H3O+ ions in pure water?