I chose the method from the different methods from different assignments. I wrote down the apparatus which I needed. I did a risk assessment which included the hazard, risk, and control. in addition to this when I was doing the experiments there were milestones that I reached and I took note of the...
Apparatus which is needed
Boiling tube
Test tube
250ml beaker
Delivery tube
Stopwatch
Rubber bungs
Spatula
Hydrogen peroxide 3 percent
Buffer solution ph. 6.2
Distilled water
Weighing scale
Potato (prepare by technicians approximately 2.2cm3)
Plastic weigh boat
Experiment
1.) 1 gram of potatoes is measured using a spatula and weighing boat using a weighing
scale and then it is transferred to the boiling tube.
2.) 250ml Water is added to separate test tube. Then you put this test tube with the
water which you added into a beaker of water.
3.) One end of the delivery tube is placed into the test tube with the other end attached
to the bung of the boiling tube.
4.) Measure out 5cm3 hydrogen peroxide solution and this you add it into the boiling
tube where there is the 1 gram of potato.
5.) Once the hydrogen peroxide is added to the boiling tube after it the rubber bung is
attached to the delivery tube and stopwatch is started immediately after this.
6.) The volume of gas which is released is used to measure 45 seconds for every 5
minutes.
7.) The experiment is repeated three time using 3 times
Risk assessment
The risk assessment whi
Hazard Risk Control
Glassware which is used It is breakable and cause Wearing googles and keep it
such as beaker injury to the student away from the work desk
edges.
Hydrogen peroxide solution It is corrosive, oxidiser and Wear goggles and personal
is also an irritant. protective equipment. It
should be handled carefully
and disposed after it being
used.
Spillage of water and trips it can be spilled which can Wearing lab coat and clean
cause people to slip and your environment liking the
trips such as bag can also be tucking the chairs and bags
risk which can causes in.
someone to fall over.
Scalpel, knife and peeler Danger hazard as it can Use it carefully.
cause you to cut yourself
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