Question #6ddc0

1 Answer
Stefan V.
Mar 18, 2017

Not really, no.

Explanation:

An aqueous solution is simply a solution that has water as its solvent.

For example, an aqueous solution of potassium nitrate, #"KNO"_3#, will have this salt as the solute and water as the solvent.

A #"1.25-M"# solution of potassium nitrate must contain #1.25# moles of potassium nitarte for every #"1 L"# of solution.

In order to prepare this solution, you should first figure out the mass of potassium nitrate that contains #1.25# moles of this salt. To do that, sue the compound's molar mass

#1.25 color(red)(cancel(color(black)("moles KNO"_3))) * "101.1 g"/(1color(red)(cancel(color(black)("mole KNO"_3)))) = "126.4 g"#

So, to make your solution, dissolve #"126.4 g"# of potassium nitrate in about #"500 mL"# of water, then add enough water until the total volume of the solution reaches #"1 L"#.

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