Hypothesis: In the investigation of the array of reaction and ducking of Sodium Thiosulphate. I name that the higher the concentration of atomic number 11 thiosulphate issue, the faster the rate of reaction because if the solution is made to a greater extent concentrated it mode there are particles of reactant knocking to the highest degree between the piddle molecules. This makes collisions between the important particles, more likely. I also predict the sulphur precipitate depart play the solution a cloudy yellow and will shadowed the cross x. Apparatus: - Goggles - check clock - 250cm3 conelike flask - 10cm3 measuring cylinder - 50cm3 measuring cylinder - 0.1m atomic number 11 thiosulphate solution - 2m hydrochloric acid - Teat pipette Practical: - collapse the apparatus and set it up. - Mea reliable out 10cm3 of Na2S2O3 and 40cm3 of water in a measuring cylinder. - shoot solution into a conic flask. - Measure out 10cm3 of HCL3 into a 10cm3 measuring cylinde r - Pour the HCL2 into the conical flask with dilute Na2S2O3 straightway the HCL2 is poured start the furnish clock. - fiddle with the flask - As the solution becomes cloudy the laminated foul cross will slowly but surely disappear. - When the dour cross disappears stop the stop clock. - Record the results. - Repeat the audition changing the get of H2O and Na2S2O3. - Do not reposition 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 make believ e to carry out the next 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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