SOLUTION: a chemistry student has 45 milliliters of a 20% salt solution. how many milliliters of salt are in the solution?

Question 1043564: a chemistry student has 45 milliliters of a 20% salt solution. how many milliliters of salt are in the solution?
Found 2 solutions by stanbon, ikleyn:
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
a chemistry student has 45 milliliters of a 20% salt solution. how many milliliters of salt are in the solution?
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Ans:: 0.20*45 = 9ml
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Cheers,
Stan H.
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Answer by ikleyn(52817) (Show Source): You can put this solution on YOUR website!
.
Salt usually/(sometime? always?) is a crystal solid body or a powder media.

And it is not measured in milliliters. It is measured in grams, for such a situation.

And the concentration, in this case, is (gram/gram) dimensionless measure.

So, if the solution is 45 gram in mass, then there is

= = = 9 gram of salt.

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