Tuesday, February 11, 2014

Calometer Lab

Cheetos Combustion Assignment Data Collection peck of the Cheetos, Calorimeter and prise of the Temperature and Volume of wet supply Trial Number          ahead Mass of Cheetos [g] ± 0.01g          after(prenominal) Mass of Cheetos [g] ± 0.01g         Mass of Calorimeter [g] ± 0.01g         Volume of urine [mL] ± 0.01mL         Temperature of wet Before thaw [°C] ± 0.1°C         Temperature of Water After raise uping [°C] ± 0.1°C 1         4.74         0.12         27.90         50.00         25.0         91.0 Qualitative Observations         Cheetos are changing from orange to black in tinct as they are burned.         The flames are coming out of the group O holes.          the skinny is coming out of the oxygen holes. Data Processing and foundation variety in Temperature Tchange = Tafter - Tbefore Tchange = 91.0°C - 25.0°C Tchange = 66.0°C Change in Mass mchange = mafter - mbefore mchange = 4.74g - 0.12g mchange = 4.62g Amount of change Gained By Water -let c be the specific heat capacitor of water Heat = mwater * cwater * ?T Heat = 50.00g * 4.184j/gC° * 66.0°C Heat = 13 807.20J Amount of Heat Gained By Calorimeter -let c be the specific heat capacity for aluminum Heat = mcalorimeter * ccalorimeter * ?T Heat = 27.90g * 0.897j/gC° * 66°C Heat = 1 651.7358J Total Heat Gained Htotal = Hcalorimeter + Hwater Htotal = 13 807.20J + 1 651.7358J Htotal = 15 458.94J modulation From Joules to Kilojoules 16 458.94J = x kJ 16437.73J = 15.5kJ Amount of Heat Gained from 50g of Cheetos -let x be the mensuration of heat gained from 50g of Cheetos 16.5kJ/4.62g = x kJ/50g x = 167.7kJ Conclusion transformation From Kilocalories to Kilojoules 290kilocalories * 4.184kilojoule/kilocalorie = 1.21*103kilojoules Percentage Error Perror = [|[a ctual value - divinatory value]| / theory-! based value] * 100% Perror = [|[167.7kJ - 1.21*103kJ]|/ 1.21 * 103kJ] * 100% Perror =... If you want to get a satisfactory essay, order it on our website: BestEssayCheap.com

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