Heat of Reaction.

>>> arouse of Reaction Aim: To determine the catch preempt of reaction of NaOH with HCl Apparatus\Materials: Polythene Cup, Thermometer, Measuring Cylinder, NaOH, HCl. Procedure: (1) 25cm of HCl was prescribe in polythene cup, (2) HCl was left to stand for 5 proceeding and then the temperature was taken (3) Steps 1-2 was repeat with NaOH instead of HCl, (4) NaOH was added to HCl in polythene cup and stirred for 5minutes and the highest temperature the liquid rose to was recorded. Results: sign temperature of NaOH - 32? Initial temperature of HCl - 31? Final temperature of mixture - 38? Temperature wage hike for NaOH = 6? Temperature rise for HCl = 7? record book of mixture = 50cm Mass of resultant role = 50g 1 cm of solution has a mass of 1g recite 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 = volume incmxconcent ration 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 heat-releasing reaction takes place when NaOH is mix with HCl. The amount of heat produced when .0025 moles of NaOH is mixed which .0025 Moles of HCl is equal to 1365J and the amount of heat that testament 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. upri! ght conclusion. And excellent calculations!! Needs sources If you want to get a skilful essay, order it on our website: BestEssayCheap.com

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