CHE 110L Lecture Notes - Lecture 10: Relative Density, List Of Lakes By Volume, Interpolation
9 Nov 2017
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Document Summary
The purpose of this experiment is to become acquainted with laboratory equipment, specific techniques, and collecting data including comprehending the uncertainties of measurement, significant figures, and the occurrence of error. The procedure for this lab can be found on pages 21-26 in general chemistry che110l. Carbon copies of data tables have been attached to the back of this lab report. Calculations: deviation in erlenmeyer flask, density of water interpolation (part 3): 1 = -0. 000202 (. 5 x -0. 000202) + 0. 998405 = 0. 998304 g/ml: volume of pycnometer: D=m/v v=m/d v= mass of water/density of water v=(25. 136g)/(0. 998203g/ml) Volume of water = volume of pycnometer = 25. 181ml: volume of water: A = mass of pycnometer + water + metal: 57. 785g. E = density of water at 20 : 0. 998203g/ml. Volume of water: d=m/v v=m/d v=d/e v=(23. 046g)/(0. 998203g/ml) v= 23. 087ml: volume of metal: D= (mass of metal)/(volume of metal) d= (15. 875g)/(2. 094ml) d=7. 581g/ml.
