Tuesday, February 26, 2013

Chem

Chemistry Lab Report- Kinetics
AIM: To determine the effect of all one factor on the rate of any reply.
look QUESTION: To determine whether potassium permanganate (artificial catalyst) or potato (natural catalyst) is much effective in increasing the rate of decomposition reaction of hydrogen peroxide.
VARIABLES:
Independent Variable: The substance used as a catalyst.
Dependant Variable: The rate of the reaction.
Control Variables: 1) Temperature: The temperature of the purlieu must be kept constant fro for each one struggle as this leave behind affect the rate of the reaction.
2) denseness of the reactants: For each trial the same amount of potassium permanganate must be taken as this will affect the rate of the reaction.
3) Concentration and amount of the catalyst.
4) Volume of gas produced: For each trial, the time will be taken for 20cm3 of the gas to be produced. This will foster to tone the rate of the reaction.
5) Pressure of the surroundings.

APPARATUS:
Test tobacco pipe with a side arm and a rake tube
Bee lay in shelf
Trough half filled with water
Burette
Stands (2)
Cork
Stopwatch
Hydrogen Peroxide firmness (30% purified)
Potassium Permanganate solution (0.02M)
A small piece of potato
Water
Pipette

method:
1) Take the trough and fill it with water until it is half full.

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2) engage the burette with water and suspend it upside down in the trough with the help of the stand.
3) Fix the test tube to the some other stand and place it on the other side of the trough.
4) signal the bee hive shelf in the trough and fix the delivery tube into the beehive shelf so that it opens out into the burette.
(Look at the diagram for the apparatus set up for gas collection)
5) argumentation down the level of water in the burette.
6) Carefully measure out 3 ml of hydrogen peroxide and 2 ml of water and pour into the test tube.
7) Now tote up 1ml of potassium permanganate and quickly close the test tube with the cork.
8) divide the stopwatch...If you want to get a full essay, order it on our website: Orderessay



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