The mole fraction of solute in a solution is the ratio of moles of solute to total moles of all components in the solution.
The mole fraction can be calculated by dividing the number of moles of solute by the total number of moles in the solution.
If you have 3.12 mol osmium hexafluoride dissolved in a total volume of 27.0 L, then:
3.12 mol osmium hexafluoride/27 L = 0.12373
The mole fraction is 0.12373, which means that 12% of all molecules in this solution are osmium hexafluoride molecules (the rest are water molecules).
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Last modified: October 11, 2022