Lab: Chemistry
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Source: Smaa Koraym at Johns Hopkins University, MD, USA
Density is a measure of how compact a substance or object is, and it is calculated as mass divided by volume. When a dense object is placed in a liquid with a lower density, the object sinks; when the object is less dense than the liquid, it floats. When the densities are the same, the object will be suspended in the liquid. In this experiment, we'll determine the density of an egg by creating a solution with the same density. We'll measure the density of the salt solution using different volume measurement glassware and determine which is the most accurate.
Container | Mass of empty container (g) | Mass of full containter (g) | Mass of solution (g) | Percent error |
50-mL graduated cylinder | ||||
10-mL volumetric pipette | ||||
50-mL beaker | ||||
20-mL volumetric flask |
Measurements | Salt solution using 20-mL volumetric flask | Egg |
Mass (g) | ||
Displacement of water (cm) | - | |
Inner diameter of 600-mL beaker (cm) | - | |
Volume (cm³) | - | |
Volume (mL) | 20 | |
Density (g/mL) |