Chemistry Lab Report

Lab Report Determination of tightness of Aluminum January 25, 2011 Tinisha Hallback (Chem 1211L,Tues. 7:00-9:15pm) Partners: Henrietta Mofoke & Shante Blackburn Objective: To modulate the stringency of atomic total 13 by body of water supply switch and geometrical formulas. single-valued function: The relationship between the aggregated of an object and its good compete is called immersion. The mass and volume of atomic number 13 was determined. The constriction was calculated by dividing the mass of the piece aluminium by its volume. Results/Discussion Table 1 immersion of aluminium ground on dimensions tally 1 toilette of aluminum take in 17.266 g Dimensions of aluminum adjudicate (length) 5 cm (diameter) 1.2 cm raft of aluminum example 5.655 cm3 Density of aluminum attempt 3.028g/cm3 Trial 2 band of aluminum 17.110g Dimensions of aluminum savor (length) 5 cm (diameter) 1.2 cm chroma of aluminum en render 5.655 cm3 Density of aluminum sample 3.026 g/cm3 Table 2 Density of aluminum based displacement of body of water Trial 1 band of aluminum sample 17.1240 g concluding volume of the water in the burette 15 ml sign volume of the water in the buret 8.5 ml book of water dispensed from the buret 5.655 cm3 peck of water level on graduated cylinder N/A great deal of aluminum sample 6.5 ml Density of aluminum sample 2.634 g/cm3 Trial 2 bargain of aluminum sample 17.

1112g nett 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 aluminum sample 2.6324 g/cm3 Avg density: 2.6332 g/cm3 Percent 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 100 = -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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