Chemist

Name: Chan Amiezah assemblage member: Shahlan bin Haji Sapar Faridahtul Ariza Binti Ahmad Shah multitude code: PD/SCI/02 Programme Title: BDTVEC Pre National sheepskin In accomplishment Unit Title: Core Science Chemistry estimation Title: Assignment. II (RATE OF REACTION) look focalize: 13th March, 2012 Date of experiment: 26th, March, 2012 Submission Date: twelfth April, 2012 Instructor visit: Ampuan Md Sairol Azami Bin Ampuan Haji Said. designate ONE Aim: To hold the effect of temperature on a rate of chemical reaction. opening: Apparatus: * Beakers * Paper * outfit gauge * Retort stand * Bunsen burner * touchstone plunger chamber * 10 cm3 of sodium thiosulphate ascendant (Na2S2O3) * 5 cm3 swerve hydrochloric irate (HCL) * 40 cm3 H2O * Stopwatch * Thermometer Procedure: First, 10cm3 of sodium thiosulphate soluti on and 40cm3 of water was thrifty into the beaker. Then, 5 cm3 of dilute hydrochloric was metric by using a small cylinder.

Next, the thiosulphate solution was fond(p) by heating the solution to compensate to the required temperature or cool the solution by using ice to sink the temperature of the solution. Then, the acid in the cylinder was added and the time was measured duration the beaker was swirled to the mix solution and it was fit(p) on a piece of root marked with a cross. The experiment was repeated at contrary temperature for : 10°C, way of life temperature, 40°C and 70°C. Finally, the clock was stopped and record when the cross was d! isappeared when looked from above. Temperature of the multifariousness in the beaker was recorded. Data recorded: Temperature of the mixture in the beaker, T (°C)| epoch taken for the cross to disappear, t (s)| Rate of reaction, 1t (S-1)| 70°C| 2.6 s| 0.38 s-1| 40°C| 6.4 s| 0.16 s-1| 25°C| 5.4 s| 0.19 s-1| 10°C| 20.6 s| 0.05 s-1|...If you want to get a full essay, social club it on our website: OrderCustomPaper.com

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