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Describe how the relative density of a salt solution can be determined using the hydrometer​

User Cadams
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Final answer:

The relative density of a salt solution is determined using a hydrometer by placing it in the solution and reading the scale at the liquid's surface, providing the specific gravity.

Step-by-step explanation:

The relative density of a salt solution can be determined by using a hydrometer, an instrument which works based on the principle of buoyancy. To measure the relative density, the process involves placing the hydrometer in a container filled with the salt solution. The device, which consists of a sealed hollow glass tube with a weighted bottom and a graduated stem, floats in the liquid. By observing where the surface of the solution aligns with the graduations on the stem, the relative density or specific gravity of the solution can be read directly.

Specific gravity is defined as the ratio of the density of a substance to the density of a reference substance; typically, water for liquids. This means, if the hydrometer sinks deeper, the liquid is less dense, and if it floats higher, the liquid is denser. Hydrometers are calibrated so that these measurements can be easily read and understood. The reading where the surface of the liquid meets the hydrometer scale provides the specific gravity, which is directly related to the relative density of the solution.

User Dave Carpeneto
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this doesn’t rlly make sense but u could use better ones
User Sean Cleaver
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