Physics

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How could the index of refraction of salt water be used to find the concentration of a salt solution?

  • Physics -

    You need experimental data on refractive index vs. salinity. Such data exists. See
    http://www.ee.ucl.ac.uk/~mflanaga/java/Saline.html

    for example

    You also need an experimental measurement of the actual refractive index. This can be performed with a triangular prism containing the solution.

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