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Ai Lin
Chemistry 5th
3/02/08

Mass and the Mole Relationships in a Chemical Reaction

Objective:

1. To calculate the number of moles of reactant and product in a simple chemical reaction.
2. To investigate mass and mole relationship in reactants and products of a reaction.

Materials:
Balance, centigram
Iron ring
Graduated cylinder, 10-ml
Burner and tubing evaporating dish and watch glass
Wire gauze
Spatula
Ring stand
Eyedropper
Sparker
Sodium hydrogen carbonate
Hydrochloric acid, 3M

Procedures

1. Place an evaporating dish on top of a watch glass. Measure their mass and record it in the table.
2. Add 2-3 grams of sodium hydrogen carbonate to the evaporating dish. Measure their masses together and record it to the table.
3. Slowly a