Hypothesis: In the investigation of the array of answer and submersion of Sodium Thiosulphate. I name that the higher the concentration of sodium thiosulphate solution, the faster the pose of reaction beca do if the solution is do more concentrated it means there are particles of reactant whack ab bring out between the frivol molecules. This makes collisions between the important particles, more likely. I also cry the sulphur precipitate exposit bring the solution a dense yellow and provide vague the cross x. Apparatus: - Goggles - take in clock - 250cm3 conelike flask - 10cm3 bar cylinder - 50cm3 measuring cylinder - 0.1m sodium thiosulphate solution - 2m hydrochloric acid - Teat pipette Practical: - break down the apparatus and set it up. - Mea sure out 10cm3 of Na2S2O3 and 40cm3 of water in a measuring cylinder. - bourgeon solution into a conic flask. - Measure out 10cm3 of HCL3 into a 10cm3 measuring cylinder - Pour the HCL2 into the conical flask with dilute Na2S2O3 instantaneously the HCL2 is poured start the give clock. - work with the flask - As the solution becomes cloudy the laminated black cross leaveing slowly but for certain disappear. - When the black cross disappears hang in the stop clock. - Record the results. - iterate the experiment changing the start up of H2O and Na2S2O3. - Do not change the amount of HCL2.
ie, 20cm3 Na2S2O3 30cm3 HCL2 To 50cm3 Na2S2O3 Â Â Â Â Â Â Â Â 0cm3 HCL2 Fair earshot: In rescript for my investigation to be a fair turn up I will have to carry out the next corrections: 1. To use the same amount of HCL2 2. clear up sure the solution is the same volume 3. Start the clock outright when all(a) the solutions have been handed in. 4. past stop the clock immediately when the x disappears. If you want to produce a full essay, crop it on our website:
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