What is meant by a $"20% solution"$ ?

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Answer 1 · 2017-02-17T06:08:22

Is the solution concentration $"Mass of solute"/"Mass of solution"$ ?

A $20%$ ( $"w/w")%$ is $"weight %"$ . It could be $"weight/volume"$ . Only you know the required concentration.

What is meant by a "20% solution""20% solution"?