Hypothesis: In the investigation of the array of reaction and ducking of Sodium Thiosulphate. I name that the higher the concentration of sodium thiosulphate settlement, the faster the rate of reaction because if the solution is made more than concentrated it mode there are particles of reactant knocking somewhat between the piddle molecules. This makes collisions between the important particles, more likely. I also predict the sulphur precipitate depart unit of ammunition the solution a cloudy yellow and will obtuse the cross x. Apparatus: - Goggles - check clock - 250cm3 cone-shaped flask - 10cm3 measuring cylinder - 50cm3 measuring cylinder - 0.1m sodium thiosulphate solution - 2m hydrochloric acid - Teat pipette Practical: - accumulate the apparatus and set it up. - Mea reliable out 10cm3 of Na2S2O3 and 40cm3 of water in a measuring cylinder. - bombard solution into a conelike flask. - Measure out 10cm3 of HCL3 into a 10cm3 measuring cylinder - Pour the HCL 2 into the conical flask with dilute Na2S2O3 straightway the HCL2 is poured start the bemuse clock. - fiddle with the flask - As the solution becomes cloudy the laminated slow cross will slowly but surely disappear. - When the downhearted cross disappears stop the stop clock. - Record the results. - Repeat the test changing the get of H2O and Na2S2O3. - Do not transpose the amount of HCL2.
ie, 20cm3 Na2S2O3 30cm3 HCL2 To 50cm3 Na2S2O3 Â Â Â Â Â Â Â Â 0cm3 HCL2 Fair audition: In rescript for my investigation to be a fair turn up I will come to carry ou t the next department of corrections: 1. To! use the same amount of HCL2 2. Make sure the solution is the same volume 3. Start the clock immediately when all(a) the solutions have been handed in. 4. Then stop the clock immediately when the x disappears. If you want to get a full essay, order it on our website:
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