Chemistry Investigation

Paper Rating: Word Count: 681 Approx Pages: 3

Aim:- To investigate what factors affect the rate of decomposition of hydrogen peroxide

Hydrogen peroxide + catalyst  Water + Oxygen

Temperature : - If temperature was investigated if it would be very hard to keep the surrounding temperature constant throughout the reaction

Concentration:- This would be the most appropriate variable as dilutions can be prepared easily and most accurately.

Volume of catalyst:- This is a hard variable to quantify and measure especially if the catalyst is in powder form. Changing the volume of catalyst would also produce too small a change in reaction rate to be able to quantify or make a statement about.

Surface area:- Breaking up a solid into smaller pieces provides a greater surface for collisions to occur between reacting particles. This would be a good variable however again it is very hard and time consuming to measure surface area and to be able to quantify and separate them into groups

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