When 2.00 moles of KNO3 dissociate in aqueous solution, how many ions are formed?

Avogadro's Number: 6.02⋅1023

Do you double 1.20⋅1024?

1 Answer
anor277
May 13, 2018

Why FOUR MOLES of ions.....

Explanation:

WE investigate the reaction....

KNO3(s)H2O−−→K++NO−3

Now supposing (somehow) you had 24, i.e. 2 dozen, potassium nitrate formula units. Would you not agree that these 2 dozen particles would gives 48, i.e. four dozen ions...2 dozen potassium ions, and 2 dozen nitrate ions...?

And here we go from a dozen to a mole, i.e. 6.022×1023⋅mol−1

And so ....

moles of ions≡2×6.022×1023⋅mol−1×2.00⋅mol=2.41×1024⋅individual ions...

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