14 Report Shee Bask Laboratory Techniques Volume delivered by 10 mL 1.1455 pipet

Question

14 Report Shee Bask Laboratory Techniques Volume delivered by 10 mL 1.1455 pipet (show calculations) 1.363 m 9,9 Mean volume delivered by 10 mL pipet (show calculations) 105 --mL - 1.9o5733333 Trial 1 Trial 2 Trial 3 Individual deviations from the mean 08391 K Average deviation from the mean (show calculations) Q02511 mL mL± -ana-mL Volume delivered by your 10 mL pipet E. Measuring the Density of Antifreeze Temperature of antifreeze 4.2 oC Trial 1 Trial 2 Trial 3 51275 ,856 a Mass of flask + antifreeze p Mass of empty flask Th -Mass of antifreeze Density of antifreeze (show calculations) 41.37141. 277 0: Mean (average) density Average deviation from the mean (show calculations)

Explanation / Answer

Given data: Mean volume delivered by 10 mL pipet = 9.9057 mL

We already have the mass of antifreeze in each trial. The mass can be simply divided by the volume of the sample taken, which would be the average volume delivered by 10 mL pipet.

Mass of antifreeze Volume of antifreeze Density of antifreeze Mean Density Deviation from mean density Average deviation from mean 9.904 g 9.9057 mL 0.999 g/mL 0 9.879 g 9.9057 mL 0.997 g/mL 0.999 g/mL -0.002 0.00 9.918 g 9.9057 mL 1.001 g/mL +0.002

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