In science and tech we experimented with Catalace.
We filled several test tubes with hydrogen peroxide, and put small pieces of liver and potato in it.
My Hypothesis: when we put the liver or the potato in the test tube of hydrogen peroxide it will decompose, it would be an exothermic decomposition reaction.
The amount of foam produced depends on the concentration of hydrogen peroxide and the amount of Catalace in the liver.
When we put the liver in the test tube it instantly started to foam and produce heat.
When we put potato in the test tube it didn't foam very much, and didn't produce a very noticeable amount of heat.
Next thing we did is we put the test tubes in boiling water to heat up the hydrogen peroxide, when i put the liver in the test tube it made a lot more foam then when not heated. when I put the potato in the test tube of hot hydrogen peroxide it didn't foam as much as it did in the cold hydrogen peroxide did.
What I also did is test blood from dog meat for Catalace, when i mixed the blood with the hydrogen peroxide there was an explosion of foam much bigger then there reaction to the liver.
So I would say that blood has a much lager concentration of Catalace in it then liver or potatoes do.
To analyze your results: the reaction between hydrogen peroxide and catalase may be exothermic, but you don't have the data to show this (temperatures of the liquid before and after. You can be sure that a small - or perhaps large- amount of foam was produced.
ReplyDeletePictures would help me understand the comparison.
8/10
make that 9/10
ReplyDelete