Experiment 2 lab report - Experiment 2 Precision and...

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Experiment 2: Precision and Accuracy of MeasurementsSI worked on this report alone, using only the course materials.A.Balance: When is a gram, a gram?Mass (g) sweetener (nominal mass): 1.0 Mass (g) empty packet: .255Balance # 2 used.Packet #Mass (packet+contents)(g)Mass (contents calculated)(g)% Error (contents)11.2510.9960.40021.3491.0949.40031.3551.10010.0041.2881.0333.30051.2781.0232.300Average1.0495.080Standard deviation0.04574Balance #Mass(packet+contents)(g)Mass(contents calculated)(g)% Error (contents)11.2781.0232.30021.2781.0232.30031.2761.0212.10041.2781.0232.30051.2761.0212.100
Average1.0222.220Standard deviation0.001095B.Measuring LiquidsGraduated CylinderCylinder SizeSmallest Graduation (mL)Precision +-(mL)250.50.2510010.51000105Delivering Liquid with Various GlasswaresTemp. Water(°C) : 22.5 Density Water (g/ml) : 0.997655 10 ml Grad. CylinderVol. water(ml)Mass Beaker + Water(g) Mass Water, per 10 ml aliquot(g)Vol. calculated, per 10 ml(ml)0109.56510119.4249.8599.88220129.3369.9129.93530139.2179.8819.904Average9.907Standard Deviation.0266310 mL Serological PipetVol. water(ml)Mass Beaker + Water(g) Mass Water, per 10 ml aliquot(g)Vol. calculated, per 10 ml(ml)0109.56510119.4669.9019.92420129.3159.8499.87230139.2059.8909.913
Average9.903Standard Deviation0.0274010 mL Volumetric PipetVol.

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