Chem207 Lab1

Chem207 Lab1 - Density of Liquids and Solids By...

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Density of Liquids and Solids By Vicky (Linwei) Tian [email protected] Partner: Katie, Michael Lab Instructor: Sean O’Leary Chemistry 207 Lab Section 1 Lab Date: September 4, 2006 Due Date: September 11, 2006
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Results and Discussion: By measuring the volume and mass of the unknown solid and liquid, densities were calculated. Using the densities and the tables in the lab manual, the unknown solid and liquid were identified to be Wood’s Metal and Cyclohexanol respectively. Three experimental trials were performed for the solid and the liquid, separately (see table 1 and table 2). Table 1: Unknown Solid Density – Data and Results Trial # Mass (g) Volume (mL) Density (g/mL) 1 18.523 2.00 9.26 2 18.523 2.00 9.26 3 18.523 1.90 9.75 Average - - 9.42 Solid #9 was taken for experiment. 9.42 g/mL is closest to 9.7 g/mL, which is Wood’s Metal . Percentage Error = 2.89 % Precision: Values are close or equal to each other for both mass and volume. The results are determined to contain an adequate degree of precision. Accuracy:
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This note was uploaded on 03/25/2008 for the course CHEM 2070 taught by Professor Chirik,p during the Fall '05 term at Cornell.

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Chem207 Lab1 - Density of Liquids and Solids By...

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