Problem: Which of the following solutions will have the highest concentration of fluoride ions?A. 0.05 M CaF2B. 0.10 M SrF2C. 0.10 M KFD. 0.10 M AlF3E. All of these solutions have the same concentration of fluoride ions.

FREE Expert Solution

We’re being asked to determine the solution that will have the highest concentration of fluoride ions. Recall that molarity is the ratio of the moles of solute and the volume of solution (in liters). In other words:

Molarity=moes of soluteLiters of solution


Since all of the given are ionic compounds, they will form ions when dissociating in water. 

A. 0.05 M CaF2

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Problem Details

Which of the following solutions will have the highest concentration of fluoride ions?

A. 0.05 M CaF2

B. 0.10 M SrF2

C. 0.10 M KF

D. 0.10 M AlF3

E. All of these solutions have the same concentration of fluoride ions.

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Our tutors have indicated that to solve this problem you will need to apply the Osmolarity concept. You can view video lessons to learn Osmolarity. Or if you need more Osmolarity practice, you can also practice Osmolarity practice problems.

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