Thursday, 28 March 2013, 16:55
CHEMISTRY FORM FIVE CHAPTER 1 : RATE OF REACTION
THE REVIEW OF CHEMISTRY FORM FIVE CHAPTER 1 : RATE OF REACTION
1. Still under the misconception of how volume of certain reactants affect the amount of products formed if given two or more dissimilar volumes and concentrations. Need further explanations. Need thorough understanding and grasp of the reaction graphs.
2. Need to consistently memorize the specificity of catalyst on certain uses.
3. The reaction between Calcium Carbonate and Sulphuric Acid which is the most common without the need of catalyst.
4. 3 common experiments for this chapter involving in experimenting the factors affecting rate of reaction which is.
Experiment I - To study the size factor (can use to experiment the concentration factor)
Materials needed - powdered and coarse marble calcium carbonate, 0.1 mol dm-3 hydrochloric acid, water
Apparatus needed - Burette, 100cm3 measuring cylinder(to measure hcl), basin, 150cm3 conical flask, stopper fitted with a delivery tube, electronic balance(to weigh the caco3), stopwatch
Experiment II - To study the concentration factor (can use for temperature but with the heating apparatus)
Materials - 0.2 mol dm-3 sodium thiosulphate Na2S2O3 solution, 1.0 mol dm-3 sulphuric acid, white paper with the mark 'X' at the center
Apparatus - 150 cm3 conical flask, 50 cm3 measuring cylinder(to measure Na2S2O3),10 cm3 measuring cylinder(to measure acid), stopwatch
Experiment III - To study the temperature factor
Materials - 0.2 mol dm-3 sodium thiosulphate Na2S2O3 solution, 1.0 mol dm-3 sulphuric acid, white paper with the mark 'X' at the center
Apparatus - 150 cm3 conical flask, 50 cm3 measuring cylinder(to measure Na2S2O3),10 cm3 measuring cylinder(to measure acid), stopwatch, thermometer, Bunsen burner, tripod stand, wire gauze
Labels: chapetr 1, form five, rate of reaction
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