What is the mole fraction of KF in a solution that has 0.321 mol of solute dissolved in 4.44 mol of water ?

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Hello thereone of the following properties was originally used to arrange elements on the periodic table, but is no longer used to organize the modern version. which property fits this description? answer: atomic mass  was originally used to arrange elements on the periodic table, but is no longer used to organize the modern version.

Answerhund's rule;