How would you prepare 2.5 L of a 0.800M solution of KNO3?

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party99 party99

21-04-2016
Chemistry

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How would you prepare 2.5 L of a 0.800M solution of KNO3?

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Willchemistry Willchemistry · Answer 1 · 2016-04-21T16:50:56-04:00

First find the mass of solute:

Molar mass KNO₃ = 101.1032 g/mol

mass = Molarity molar mass volume

mass = 0.800 101.1032 2.5

mass = 202.2064 g of KNO₃

To prepare 2.5 L (0800 M) of KNO3 solution, must weigh 202.2064 g of salt, dissolve in a Beker, transfer with the help of a funnel of transfer to a volumetric flask, complete with water up to the mark, capping the balloon and finally shake the solution to mix.

hope this helps!