Volumetric measuring equation?

  1. I'm looking for a set of equation(s) to solve the following problem:

    Given 5 mg of a substance dissolved in 30 ml of liquid, how much of the substance will be present in 1 drop of water of the solution? Given one drop of water is equal to 0.050 ml.

    Thank you. This is not homework, just a request to know the appropriate equation to solve the above question.
  2. jcsd
  3. adjacent

    adjacent 1,540
    Gold Member

    If 5mg get's dissolved in 30ml of water,what is the mass of water in 0.05ml of water?
    Hint: 30ml is 5,what is 0.05ml?
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