A #"standard solution"# is #"aqueous"#, #"unsaturated"#, #"a mother solution"#?

2 Answers
anor277
Jun 1, 2017

None of your options is satisfactory........

Explanation:

A solution of known concentration, may be #"aqueous"#; it may be #"unsaturated"#; it may be a #"mother solution"# from which prepare various dilutions. You do know the solution #"concentration"#, i.e.

#"Concentation"="Moles of solute"/"Volume of solution"#.....

and typically we report the concentration with units of #mol*L^-1#.

Simon Moore
Jun 1, 2017

Should be "Standard solution", shouldn't it?

Explanation:

None of the other possible answers work.

"Normal" means unit gram equivalent mass of solute per litre of solution.

"Aqueous" just means that the solvent is water.

"Original" means that a solution used to prepare other solutions by dilution.

"Unsaturated" means that the amount of solute dissolved is below the maximum amount that can be dissolved per unit volume.

"Standard solution" = a solution that contains a precisely known concentration of solute (in analytical terms anyway).

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