Memorandum

To:       CHM 1045 Recitation Instructors
          Dillhyon, Martin, Callihan, Guile

From:     Robley Light

Date:     January 29, 1995

Re:       Recitation 3, week of January 22


     Attached is a key to the quizzes in both sections, in case you
have students attending from both.  Make another effort to get
people in your section going to the right lecture (or vice versa),
and give a little time for the students to firm up their groups,
and to get late registrants into a group.

Go over the following:

Calculating average atomic weights from isotope distribution.

Calculating molecular and formula weights.

Calculating per cent compostion from MW and FW.

Interconverting moles, grams, # of atoms or molecules.

Calculating empirical formulas from percent compostion data.

From grams of one reactant or product in a chemical reaction,
calculate grams of another reactant or product.

Calculate the limiting reagent from reactant quantities, and the
amount of product produced from the limiting reagent quantity.

(If there is time, which I doubt, you could move on to molarity.)