Biology

Effect of changing the surface range on the lean of atomic number 8 produced in a total commove peroxide and murphy reply. Hypothesis: As the surface area increases the amount of group O produced by the reaction increases. Dependent uncertain quantity: Oxygen, it testament be mea incontestabled by exploitation 2 test pipes, bunks and syringe in order to count the bubbles of degree Celsius dioxide produced. Independent variable: Surface area, it will be changed by cutting opposite coats of potato. Controlled variable: -Hydrogen peroxide: 20 ml and 1 mole. -Temperature: controlled by using thermometer and keep it at 30ºC -Time: Using a stop watch and recording the reaction for 2 transactions. Equipment: -Thermometer -200 ml beaker -Gas syringe -Boiling tube -Test tube -Hydrogen peroxide (1mole) -Potato -Tripod -Bunsen Burner -Mat -Measuring cylinder -Ruler -Knife Method: 1. station 100ml water into a 200ml beaker and he at using a Bunsen burner until the thermometer reads 30 ºC. The temperature must be maintained through the entire experiment. 2. Using a measuring rod cylinder measure 20ml of hydrogen peroxide and put it inner(a) the change state tube. Leave the boiling tube privileged the beaker for 5 minutes so the water can queue up to 30 ºC. 3.

decamp the potato using a stop up borer coat 1 (for the next experiment you will use size 4,5,6) and measure the potato duration of 1 cm with a ruler. Cut the potato tube with a knife. Make sure to have 3 potato tubes with length of 1 cm. 4. Put one potato tube inside the boiling tube with hydrogen peroxide and cove! r direct with the gas syringe. go bad to take the time with the stopwatch as soon as the potato goes into the boiling tube. bug out counting the amount of bubbles produced for 2 minutes. 5. Repeat the experiment with unlike sizes of potato. Results Table: Effect of changing the surface area on the amount of oxygen produced in a catalase reaction. |  |Amount of oxygen bubbles produced...If you want to get a full essay, order it on our website: OrderCustomPaper.com

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