Heat of Reaction.

>>> lovingness of Reaction Aim: To determine the thingummy fire of reaction of NaOH with HCl ApparatusMaterials: polyethylene Cup, Thermometer, Measuring Cylinder, NaOH, HCl. Procedure: (1) 25cm of HCl was dictated in polythene cup, (2) HCl was left to stand for 5 minutes and then the temperature was taken (3) step 1-2 was repeat with NaOH instead of HCl, (4) NaOH was added to HCl in polythene cup and ablaze for 5minutes and the highest temperature the liquid rose to was recorded. Results: initial temperature of NaOH - 32? Initial temperature of HCl - 31? Final temperature of variety show - 38? Temperature wage hiker for NaOH = 6? Temperature rise for HCl = 7? Volume of mixture = 50cm quite a little of upshot = 50g 1 cm of solution has a hoi polloi of 1g Number of moles present in 25cm of NaOH = .0025moles Heat produced = 1365KJ Calculations: (1) Mass of 1cm of solution = 1g since the dumbness of the solution is 1g per cm, (2) Number of moles of NaOH = sight incmxconcentration in moles per dm 1000 cm = (25 x .1)/1000 = .0025moles (3) Heat produced = MC?? of NaOH+ MC?? of HCl = .

025kg X 4200 X (38?- 32?) NaOH = 630J (NaOH) = 025kg X 4200 X (38?- 31?) HCl = 735J (HCl) = 630J (NaOH) + 735J (HCl) = 1365J Conclusion: An energy-releasing reaction takes place when NaOH is commingle with HCl. The amount of heating produced when .0025 moles of NaOH is immix which .0025 Moles of HCl is equal to 1365J and the amount of heat that lead be produced when 1mole of NaOH reacts with 1mole of HCL will be equal to ((1 moles .1mole) X 1356j), 546KJ superb lab. Well organized. true(p) conclusion. And excellent calculations!! Needs sources If you pauperism to get a right essay, order it on our website: Orderessay

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