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Internet Exercises
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  1. Using Chem Finder at Cambridge Soft, http://chemfinder.camsoft.com/, answer the following questions about sulfuric acid.
    1. Is sulfuric acid a strong or weak electrolyte?
    2. Assign oxidation numbers to all the elements in the compound.
    3. How would you prepare 300 mL of a 0.95 M H2SO4 solution, starting with a 8.56 M stock solution?
    4. How many mL of a 0.530 M NaOH solution are needed to completely neutralize 35 mL of a 0.345 M H2SO4 solution?

( http://chemfinder.camsoft.com/ )
  1. Review the meaning of strong and weak electrolytes at http://vax1.bemidji.msus.edu/~chemistry/acidsgen/acidsgen.html, and then classify the following:
    1. citric acid
    2. sulfuric acid
    3. the smelly stuff your grandma used in a dilute solution to clean windows
    4. the main organic ingredient in vinegar
    5. the acid used by your stomach to digest your food
    6. the acid, containing nitrogen, used to make explosives

( http://vax1.bemidji.msus.edu/~chemistry/acidsgen/acidsgen.html )
  1. An acid-base titration is shown in Animation 60 at the Hardy/West site, http://ull.chemistry.uakron.edu/genobc/. Play the animation and then answer the following with true or false:
    1. The titrant is in the Erlenmeyer flask.
    2. The volume of the solution in the Erlenmeyer flask must be carefully measured in order to determine the amount of acid and base in the flask.
    3. The point in the titration where the color changes is called the equivalence point.
    4. The color changes during the titration because the compound being titrated changes color.
    5. The color changes because the pH of the solution goes below 7.

( http://ull.chemistry.uakron.edu/genobc/ )
  1. Many university webpages provide tutorials on various subjects. Help on net ionic reactions is given by Virginia Tech at this address: http://www.chem.vt.edu/RVGS/ACT/notes/. Go to Notes_on_Net_ionic_rx+ and answer the following questions.
    1. In the top equation, what is oxidized?
    2. What is reduced?
    3. Which ions are spectators?
    4. Write the net ionic equation.

( http://www.chem.vt.edu/RVGS/ACT/notes/ )





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