Here is an example of a-level biology coursework on the effect of substrate concentration (hydrogen peroxide) on the rate of activity of the enzyme catalase energy needed for the reaction without catalase, the decomposition would take much longer and would not be fast enough to sustain human life. Class practical or demonstration hydrogen peroxide (h2o2) is a by-product of respiration and is made in all living cells hydrogen peroxide is harmful dilute immediately before use and put in a clean brown bottle, because dilution also dilutes the decomposition inhibitor keep in brown bottles because.
Several measuring cylinders are set up each containing a little washing up liquid and a small amount of a catalyst for the decomposition of hydrogen peroxide hydrogen peroxide is poured into the cylinders and a foam rises up the cylinders at a rate that depends on the effectiveness of the catalyst.
The chemistry b (salters) coursework marking descriptors have been devised to allow a wide variety of types of investigation first find order of reaction with respect to hydrogen peroxide, iodide and acid using a 'clock' reaction therefore find rate chemistry review project page 'decomposing hydrogen peroxide.
Learn the basics about the decomposition of hydrogen peroxide, as a part of chemical reactions subscribe to the fuse school youtube channel for many more ed.
This is an experiment to examine how the concentration of the substrate hydrogen peroxide affects the rate of reaction of the enzyme catalase this is an a-level biology project catalase speeds up the decomposition of hydrogen peroxide into water and oxygen as shown in the equations below. You can find instructions for this experiment at resource/res00000831/hydrogen-peroxide-decomposition several measuring cy. Decomposing hydrogen peroxide this project page first appeared in the september 1995 issue of chemistry review, volume 5, number 1, page 30 note: project page is designed to help you think about your investigation it is not intended to be a set of instructions for practical work and does not include a list of safety.
Vary the concentrations of reactants and measure the time it takes for product to appear this video is part of the flinn scientific best practices for teach.