How Hydrometers Work and Their Applications
Hydrometers are instruments used to measure the specific gravity (density) of liquids. They consist of a glass or plastic tube filled with a liquid, such as water or alcohol, and have a float that rises or falls depending on the density of the liquid being measured. The float is calibrated to give a reading of the specific gravity of the liquid based on its position in the tube. Hydrometers are commonly used in laboratory settings to determine the concentration of solutions, the purity of chemicals, and the specific gravity of liquids. They can also be used to measure the density of fluids in industrial applications, such as monitoring the density of crude oil or measuring the specific gravity of beer during brewing.
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