AP Chemistry Summer 2006 Assignments

• Most of this information is review from Chemistry I.

1. Memorize these polyatomic ions:
   
   Positive Ions: mercury(I) and ammonium
   
   Negative Ions: hydroxide, nitrate, nitrite, cyanide, chromate, dichromate, permanganate, peroxide, carbonate, sulfate, sulfite, phosphate, acetate, perchlorate, chlorate, chlorite and hypochlorite.
   
   Open up the following pdf document to study: (pdf). You should learn their charge as well as their formulas. (Do this assignment first. It'll make the rest of the assignments easier.) ONLY memorize the ones listed on this page. You may want to make Flashcards to help.
   
   
2. Memorize the six strong acids:
   HClO₄ (aq) perchloric acid
   HCl (aq) hydrochloric acid
   HBr (aq) hydrobromic acid
   HI (aq) hydroiodic acid
   HNO₃ (aq) nitric acid
   H₂SO₄ (aq) sulfuric acid
   
   
3. Memorize the solubility rules (pdf):
   
   1. Any compound with a group 1 ion (Li⁺, Na⁺, K⁺) or NH₄⁺ will be soluble.
   Example: NaCl, and K₂SO₄ are soluble.

   2. All common nitrates (NO₃^-) and acetates (C₂H₃O₂^-) are soluble.
   Example: CuNO₃ and AgC₂H₃O₂ are soluble.

   3. All binary compounds of the halogens: Br^-, I^- and Cl^- (not including F^-) are soluble, unless in combination with Ag⁺, Hg₂²⁺ , and Pb²⁺.
   Example: CuBr and CoCl₂ are soluble.
   AgCl and PbI₂ are NOT soluble.

   4. All sulfates( SO₄^2-) are soluble except when in combination with Ba²⁺, Sr²⁺, Ca²⁺, Pb²⁺, Ca²⁺ and Hg₂²⁺.
   Example: CuSO₄ and NiSO₄ are soluble.
   BaSO₄ and CaSO₄ are NOT soluble.

   5. Except for those in Rule 1, CO₃^2-, OH^-, O^2-, S^2- and PO₄^3- containing compounds are NOT soluble.
   Example: Co(OH)₂ and Ca₃(PO₄)₂ are NOT soluble
   NaOH and (NH₄)₂S are soluble.
   

4. Review writing chemical formulas (also known as nomenclature).

   a. Go to the following links to review writing formulas:

• http://members.aol.com/profchm/naming.html
• http://www.chem.vt.edu/RVGS/ACT/notes/Nomenclature.html
• http://dbhs.wvusd.k12.ca.us/webdocs/Nomenclature/Nomenclature.html

b. Go to the following links to practice writing formulas. Try at least 10 from each page. Read the directions at the top of the page before trying.

• http://chemistry2.csudh.edu/newlechelp/namingcs.html (Formulas to names.)
• http://chemistry2.csudh.edu/homework/hwnaming.html (Formulas to names.)
• http://proton.csudh.edu/homeworkcs/hwstocknamingcsn7.html
  (Don't forget to use Roman numerals when using the Stock System.)
• http://proton.csudh.edu/homeworkcs/hwnamestoformulascsn7.html (Names to formulas)

• We will have a test toward the end of the first week over this material.
• Try last year's test.