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I'm confused by the wording of this question: (a) Determine the number of KNO3 formula units in 0.750 mol KNO3. Could someone explain what a formula unit is and how to find it? When I looked it up online the definition said "empirical formula" which is why I'm confused. Thanks!
A formula unit is in a sense the chemical compound it seems with the least amount of elements so I thought of it as the simplest chemical compound and minimum number of elements in it. So it can also be called the empirical formula.
I think of formula units just as if they were atoms so I would solve this problem just as if you were solving for atoms. You'll get the same answer except you would be in formula units instead of atoms, so I would just multiply the given mols by Avogadro's number and you'll have the solution in formula units
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