What does it mean if a solution is concentrated?

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What does it mean if a solution is concentrated?

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Answer 1 · 2016-12-19T21:49:25

It means the quantity of solute is particularly large. How large that is depends on the solution being discussed.

For instance, $3 M HCl$ $"3 M HCl"$ is not considered concentrated for laboratory purposes, but we tend to see $12.06 M$ $"12.06 M"$ ( $37 %$ $37%$ $w/w$ $"w/w"$ ) $HCl$ $"HCl"$ considered concentrated, "reagent-grade" $HCl$ $"HCl"$ .

Or, ${1 M H}_{2} {SO}_{4}$ $"1 M H"_2"SO"_4$ is not considered concentrated, but we tend to consider $18 M$ $"18 M"$ ( $\approx 98 %$ $~~98%$ $w/w$ $"w/w"$ ) $H_{2} {SO}_{4}$ $"H"_2"SO"_4$ concentrated.

We denote concentrated solutions as liquids, rather than aqueous, if they were dissolved in water, since the solute has basically become the solvent.

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What does it mean if a solution is concentrated?

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