Density

Densities
By: Tabinda Zaheer
Chemistry Lab Report












Introduction
Density is the amount of a substance contained within a specific area. In Chemistry and physics, density is the ratio of the mass of a substance to its volume, and is calculated by dividing the mass by the volume. Density is often expressed in units such as grams per cubic centimeter (g/cm3) or pounds per cubic foot (lb/ft3).
The density of a substance can vary under different conditions. Substances expand and contract as their temperature changes, and as a result their density also changes. Precise measurements of density include the temperature due to this.
Density can be measured in a number of ways. Solid objects can be weighed to determine their mass and then immersed in a liquid to determine their volume. The volume of liquid displaced by the object is equal to the object’s volume, and the mass divided by the volume is its density.
The density of a liquid may be determined similarly...