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unit 16 Assignment 2, extended diploma science btec

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Unit 16 - Chemistry for Biology Technicians
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This includes: P2, M2, D2 questions task criterion: P2 To carry out experiments to show the effect on the rates of reactions of changes in concentration, particle size, temperature and presence of a catalyst. M2 To explain variation in rates of reaction as a function of concentration, particle size, temperature and presence of a catalyst. D2 To use data to determine orders of reaction, rate constants and rate equations. *harvard referencing included for each section* i have all assignments from level 2, 3, 3,2 available as well as a bundle of all assignments of the levels, if there is any missing dont doubt on sending me a message, share with you're friends and thanks for visiting me!! (THIS WILL SHOW UP IN THE MARK BOOK AS PLAGIARISM AND YOU WILL GET EXCLUDED OUT THE COURSE) THIS WORK IS MEANT TO BE AS A REFERENCE OR GUIDANCE FOR YOU'RE WORK PLEASE RESPECT MY WORK AND MAKE SURE YOU GIVE ME CREDIT OR PUT IT IN YOU'RE OWN WORDS Thanks

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Task 1


Concentration and the rate of reaction

Method:

- Weight 10g of marble chips on the top-pan balance
- Une a measuring cylinder to measure out 10 cm3 of 1.00 mol dm-3 hydrochloric acid.
Pour the acid into the conical flask.
(care: 1.00 mol dm-3 hydrochloric acid is an irritant.)
- Set up the following apparatus but do not add the marble chips yet




- Add the marble chips to the conical flask and quickly stopper the flask and connect
the gas syringe. Start the stopclock at the same time.
- Mesure the volume of gas (carbon dioxide) Procedur every 20 seconds.
- Do not stop the clock between readings
- Record your results in a table
- Repeat the experiment using: 20 cm3 0.50mol dm-3 hydrochloric acid, and 40 cm3
0.25 mol dm-3 hydrochloric acid.

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Applied Science 2010 QCF
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