E1 - densities of liquids and solids.

E1 - densities of liquids and solids. - Densities of...

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Densities of Liquids and Solids by Lab Instructor: September 03, 2009
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Experiment 1 - Densities of liquids and solids Introduction An experiment was performed to determine the densities of an unknown liquid and an unknown solid. The density of a compound was calculated from its mass and volume. Density= mass/Volume. Part 1- Density of unknown solid # 6 Procedure 1. The unknown solid was massed using an electrical balance. The mass was recorded in table 1. 2. Using a volumetric pipette, I added 10 ml of water in a graduated cylinder. The volume was recorded (see table 1). 3. The unknown solid was added to the graduated cylinder-with special care not to lose any H 2 0 amount present in graduated cylinder. The new volume was recorded (see table 1) 4. After deriving the volume of the unknown solid, I calculated its density (see table 2). 5. Each measurement was made three times to estimate the accuracy and precision of the experiment. Note : The unknown solid was a grey block with a regular shape. Data collection Table 1 : Data and results recorded. Trial # Mass of solid (g) ± 0.001 Volume of water (mL) ± 0.01 Volume of water and solid(mL) ± 0.1 1 3.688 10.00 14.0 2 3.688 10.00 14.0
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3 3.688 10.00 14.2 Data analysis The volume of solid = volume of water and solid- volume of water
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This note was uploaded on 04/25/2010 for the course CHEM 2070 taught by Professor Chirik,p during the Fall '05 term at Cornell University (Engineering School).

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E1 - densities of liquids and solids. - Densities of...

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