Rate Of Reaction - Hydrogen Peroxide Lab

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Rate of Reaction Lab
Hydrogen Peroxide Lab
Balance Chemical Reaction:

Effect of Temperature on Rate of Reaction
Directions (Procedures)
1. Turn on the Hot plate on the bench. One Hot plate per bench.
2. Obtain a "Bubble-O-meter"
3. Using scale on side of "Bubble-O-meter", add 20ml of hydrogen peroxide solution.
4. Using stopwatch, record (in data table below) the number of bubbles you see in 3minutes @room temperature
(Not seeing any bubbles is OK. It does not mean lab is wrong)
5. Place the "Bubble-O-meter" on the hot plate (one plate per bench). Wait a few minutes for solution to heat up (wait until you see 1st bubble before starting stopwatch).
6. Using stopwatch, record (in data table) the number of bubbles you see in 3minutes.
7. When done, take "Bubble-O-meter" off Hot plate and let it cool back down to room temperature (wait 1-2 minute).

Effect of Catalysts on Rate of Reaction
Directions (Procedures)
1. Use the results of room temperature trial from the above procedures as you "room temp" trial. Record in data table below.
2. You can use the same solution as the step above. Once "Bubble-O-meter" has cooled for a 1-2 minute (Step7), add 5-6 drops of potassium iodide (KI) solution to the hydrogen peroxide solution. Make sure that you put the top of "Bubble-O-meter" back on and that there is enough water.
3. You need to wait until the catalyst (KI) starts working before you start counting drops. Count the number (& record in the data table below), the number of bubbles you see in 3minutes.
4. Rinse out all parts of the "Bubble-O-meter" and put them away to dry.
Temperature vs. Reaction Rate
Temperature Rxn Rate (bubbles/60.sec)
______________ _____________________
______________ _____________________

Presence of Catalyst vs. Reaction Rate
Catalyst(Y/N) Rxn Rate (bubbles/60.sec)
______________ ______________
______________ ______________


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Last edited February 26, 2009 5:00 pm (diff)
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