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CHEM 104 LAB 1
Notebook
Experiment #: 1
Title: Kinetics
Purpose: To learn about speed of chemical reactions and how concentration and
temperature can impact
the reaction rates.
Procedure:
Experiment #1
1. Pour approximately 10mL of 0.1M S2O3
2- into test tube 1
2-
2. Pour approximately 8mL of
S2O3
3. Pour approximately 6mL of
S2O 2-
4. Pour approximately 4mL of
S2O 2-
5. Pour approximately 2mL of
S2O 2-
into test tube 2, add 2mL water
into test tube 3, add 4mL
water into test tube 4, add
6mL water Into test tube 5,
add 8mL water
6. Add 10mL of HCl to test tube 1 and start timer. Mix gently and observe for turbidity
7. Note time when a white cloudiness appears
8. Repeat step 6 and 7 for test tubes 2 through 5
Experiment #2
1. Using gas apparatus, mix 5mL H2O2 and 15mL H2O in mixing chamber
2. Observe and note initial volume of O2, and pour in 10mL Kl and put on stopper
3. When 2mL of O2 has been produced, start timer
4. Record time measurements after each 2mL of O2 has been produced
5. Repeat steps 1 through 4 for trial 2 and t with the corresponding amount of H2O2, H2O, and Kl
Experiment #3
1. Repeat experiment #2 with a water bath to increase temperature to 35oC
