write 25 uses of hydrometer
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Explanation: A hydrometer is an instrument used to measure the specific gravity or relative density of liquids, i.e. the ratio of the density of the liquid to the density of water. Hydrometers are usually made of glass and consists of a cylindrical stem and a bulb weighted with a heavy material to make it float upright.
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Lactometer for milk
Alcoholometer for wines and alcohols
Saccharometer for sugar
A barometer for tanning liquids in leather-making.
Urinometer for urine analysis
Acidometer for acids
Batter hydrometer for lead-acid battery
Salinometer for liquids with salt content
Thermohydrometer for fuel oils like petroleum
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