How would you prepare 1.0 L of a o.500 M solution of potassium chloride?

1 Answer
anor277
Jul 8, 2016

Take a 1L volumetric flask, and thru a funnel quantitatively transfer a 37.276*g mass of potassium salt. Fill the flask up to volume.

Explanation:

So all you have to do is accurately weigh the potassium chloride (of course if it's a bit out, you still know the accurate concentration). Potassium chloride has a molar mass of 74.5513*g*mol^-1; it is very (and easily) soluble in water, so you will have no difficulty in dissolving such a mass BEFORE you fill the flask to volume.

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