Question

How do I find the total mass of sample in a solution?

I have:
Volume of the solvent
Mass of the solvent
Mass of sample added

I do not know what the sample is.

Thanks!
The mass of sample IN the solution is the mass of sample added. The total mass of sample and solution is mass of sample + mass solvent.
It's easier to answers REAL question (with numbers) rather than general ones.

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