Chemistry Lab Report

Lab Report Determination of niggardness of Aluminum January 25, 2011 Tinisha Hallback (Chem 1211L,Tues. 7:00-9:15pm) Partners: Henrietta Mofoke & Shante Blackburn Objective: To regularize the Density of atomic number 13 by weewee displacement and geometrical formulas. Procedure: The blood between the plenty of an object and its good deal is called immersion. The push-down stack and deal of aluminium was determined. The constriction was calculated by dividing the mass of the piece aluminium by its volume. Results/Discussion Table 1 Density of aluminium based on dimensions tally 1 pot of aluminium take in 17.266 g Dimensions of aluminum adjudicate (length) 5 cm (diameter) 1.2 cm raft of aluminum take in 5.655 cm3 Density of aluminum prove 3.028g/cm3 Trial 2 Mass of aluminum 17.110g Dimensions of aluminum sample (length) 5 cm (diameter) 1.2 cm ledger of aluminum sample 5.655 cm3 Density of aluminum sample 3.026 g/cm3 Table 2 Densit y of aluminum based displacement of body of water Trial 1 Mass of aluminum sample 17.1240 g Final volume of the water in the burettete 15 ml initial volume of the water in the buret 8.5 ml pile of water dispensed from the buret 5.655 cm3 intensity of water aim on graduated cylinder N/A Volume of aluminum sample 6.5 ml Density of aluminum sample 2.634 g/cm3 Trial 2 Mass of aluminum sample 17.

1112g Final volume of the water in the buret 18 ml initial Volume of the water in the buret 11.5 ml Volume of water dispensed from the buret 5.655 cm3 Volume of water level on graduated cylinder N/A Volume of aluminum sample 6.5 ml Density of alumin! um sample 2.6324 g/cm3 Avg parsimoniousness: 2.6332 g/cm3 part hallucination is 12% Calculations D = M/V 17.1240/5.6555 = 3.027 Avg density: 3.028 + 3.026 / 2 = 3.027 Volume: 3.14159 x (1.2/2)2 x 5= 18.84954 percentage evaluate: 2.7-3.027/2.7 x blow = -12.1 (Therical Value 2.7) 2.7 2.633/2.7 x 100 Conclusion: The density of aluminum was determined to be 2.6332 g/cm3. The actual density is 2.634 g/cm3 which...If you want to get a full essay, beau monde it on our website: OrderCustomPaper.com

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