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
Chemistry Investigation
|
|
||||||||||||||||||||||||||||||
8 
)
• Pour 10cm³ of hydrogen peroxide solution (using a eudiometer tube to measure out volume) into a conical flask and weigh on a scale
• Draw tangents at 10 seconds for each curve and hence work out gradient of curve at 10 seconds to give true reaction rate
• Measure mass loss of hydrogen peroxide solution for 30 seconds at 5 second intervals. Stop stopwatch at 30 seconds
Some topics in this essay:
Chemical Reaction, Mass, Oxygen, Hydrogen Peroxide, Chemical Kinetics, Reaction Rate, Integral,
681 
3 
PROFESSIONAL ESSAYS:
History of Chemistry The history of chemistry involves a journey
.... and fancy. In the sixteenth century, chemistry was subordinated to medicine as an area worthy of investigation. New medicines were .... (1806 
7 
)
Ernest Rutherford
.... prove useful in explaining most of the phenomena of chemistry and everyday .... model of the atom as initially conceived from this investigation, problems that .... (2578 10 )
Classifying Science & Scientific Method
.... different fields, and science is the underlying "method" in chemistry, physics, biology .... this knowledge is then drawn upon for further investigation to uncover .... (977 4 )
THE RISE OF EXPERIMENTAL SCIENCE
.... The physical sciences include physics, chemistry, and geology, while the biological .... become a dogma if not subjected to constant investigation and development. .... (2673 11 )
Ethnobotany
.... and a topical formulation called Virend, under clinical investigation for use .... With the development of combinatorial chemistry and high throughput screening .... (2470 10 )
Ethnobotany
.... and a topical formulation called Virend, under clinical investigation for use .... With the development of combinatorial chemistry and high throughput screening .... (2451 10 )
JOIN NOW
SAVED PAPERS
TESTIMONIALS
"This information was helpful and easy to find."
Kris D.
"it really helps me get different point of views on some essay subjects."
Steve D.
"I got the best grade I've ever gotten A+"
Mary P.
"This site is so helpful! You have opened my eyes to learning thank you!"
Karen F.
"I liked the information that you gave to me because it helped me do a analytical essay for this short story and i give it a 10/10 =) "
Dave M.