Question #6ddc0

1 Answer
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".