Chemistry Lab Report

Lab Report Determination of meanness 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 affinity between the aggregative of an object and its good deal is called immersion. The can and vividness of aluminium was determined. The constriction was calculated by dividing the mass of the piece atomic number 13 by its volume. Results/Discussion Table 1 Density of aluminium based on dimensions tally 1 pot of atomic number 13 take in 17.266 g Dimensions of aluminum adjudicate (length) 5 cm (diameter) 1.2 cm raft of aluminum standard 5.655 cm3 Density of aluminum precedent 3.028g/cm3 Trial 2 Mass of aluminum 17.110g Dimensions of aluminum sample (length) 5 cm (diameter) 1.2 cm record of aluminum sample 5.655 cm3 Density of aluminum sample 3.026 g/cm3 Table 2 Density of aluminum based displacement of body of water Trial 1 Mass of aluminum sample 17.1240 g Final volume of the water in the burette 15 ml sign volume of the water in the buret 8.5 ml mint of water dispensed from the buret 5.655 cm3 account book of water level 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 cyl inder N/A Volume of aluminum sample 6.5 ml ! Density of aluminum sample 2.6324 g/cm3 Avg engrossment: 2.6332 g/cm3 per centum 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 percent evaluate: 2.7-3.027/2.7 x carbon = -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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