Editing Rate Of Reaction - Hydrogen Peroxide Lab - Revised 2016

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<center>Rate of Reaction Lab</center>
<center>Hydrogen Peroxide Lab - Revised 2016</center>
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 <nowiki>OK</nowiki>. 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 Concentration on Rate of Reaction 
Directions (Procedures) 
You will do this section of lab with two different lab groups. 
1. One group obtain 20ml of hydrogen peroxide, the concentration used in above section. 
2. Other group obtain 20.ml of "Other" hydrogen peroxide solution (has a difference concentration). 
3. Each group place solution into their own "Bubble-O-meter". 
4. With hot plate on, place both "Bubble-O-meter" on the same hot plate. 
5. Wait until one sees bubbles going thru both "Bubble-O-meter" and then choose a starting time. 
6. Record the number of bubbles for a specific period of time in each "Bubble-O-meter" (same time for each group). 
7. Both groups record each other's results besides one's own results (in the table below). 
 
Effect of Catalysts on Rate of Reaction 
Directions (Procedures) 
1. Use the results of room temperature trial from the above procedures as your "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 (or 1mL*) 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.
 
Note: * 1mL for 0.80M KI solution. 
 
 
 
 
 
 
 
<table bgcolor=beige border=2>
<tr>
<th colspan=8 align=center>Temperature vs. Reaction Rate</th>
<tr>
<tr>
<th>Temperature</th>
<th>Rxn Rate (bubbles/60.sec)</th>
<tr>
<tr>
<th>______________</th>
<th>_____________________</th>
<tr>
<tr>
<th>______________</th>
<th>_____________________</th>
<tr>
</table>

<table bgcolor=beige border=2>
<tr>
<th colspan=8 align=center>Concentration vs. Reaction Rate</th>
<tr>
<tr>
<th>Concentration</th>
<th>Rxn Rate (bubbles/60.sec)</th>
<tr>
<tr>
<th>______________</th>
<th>_____________________</th>
<tr>
<tr>
<th>______________</th>
<th>_____________________</th>
<tr>
</table>
 
<table bgcolor=beige border=2>
<tr>
<th colspan=8 align=center>Presence of Catalyst vs. Reaction Rate</th>
<tr>

<tr>
<th>Catalyst(Y/N)</th>
<th>Rxn Rate (bubbles/60.sec)</th>
<tr>
<tr>
<th>______________</th>
<th>______________</th>
<tr>
<tr>
<th>______________</th>
<th>______________</th>
<tr>
</table>

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