Select the diagram that represents the solution formed by a solut...

Question

Select the diagram that represents the solution formed by a solute

Two overlapping circles representing strong electrolytes in a solution.

that is a (9.2)

c. strong electrolyte

Accepted Answer

Welcome back everyone. A molecule of a strong electrolyte is shown below which of the following represents the solution formed from dissolving the strong electrolyte in water. So we are dissolving the strong electrolyte in water. And our given strong electrolyte molecule shows a orange colored atom bonded to a blue colored atom which as a whole make up our single molecule. Now, we are given diagrams A through D where in diagram A, we can observe that we have three molecules of our strong electrolyte and then two dissociated single atoms being our orange atom and then our blue atom separated in solution. Next, in diagram B, we can observe that we have all individual dissociated ions where we have three or rather four of our blue dissociated ions and four of our orange dissociated ions. In diagram C, we have an image of all dissociated blue individual ions. And then in diagram D, we have four molecules of our solute molecule which remains unassociated. Now, let's recall that a strong electrolyte will fully dissociate into ions. So we can observe that this molecule that we have within our, one of our diagrams should fully have both our individual orange ions dissociated and our individual blue ions dissociated. Looking at our diagrams. We observed that in diagram B, we had our four individual dissociated orange ions and our three or four individual dissociated blue ions. Meaning that diagram B depicts a strong electrolyte aqueous solution. Whereas because in diagram A, we only had two dissociated ions within or from our original molecule where we had three moles of our solute molecule remain intact in solution. That means that diagram a therefore represents only a weak electrolyte solution. Since we only again, had a majority of our solute molecules remain intact and only two dissociated ions. So we'll note down that our moles of solute were greater than our moles of dissociated ions unless we have a weak electrolyte solution in diagram A. So we would certainly rule out diagram A as being representative of our strong electrolyte. Then in diagram C as we saw, we have only one of our kind of ions, which is our blue ion sphere dissociated as individual ions in solution. So we can note down that we have a single dissociated ion. So diagram C would not represent a strong electrolyte solution. We would need both of our dissociated ions being our orange ion particles along with our blue iron ion particles. So C we can rule out and then in diagram D, we just have all solute unassociated molecules, meaning we have a non electrolyte solution, which is not going to be representative of a strong electrolyte which will fully dissociate into ions. So we can also rule out diagram D and that leaves us to confirm that diagram B which as we stated has all of our dissociated ions making up our electrolyte, strong electrolyte molecule fully dissociated in our solution. Meaning that diagram B represents a strong electrolyte acre solution. So diagram B is our final answer. I hope that this made sense and let us know if you have any questions.

Select the diagram that represents the solution formed by a solute
that is a (9.2)
c. strong electrolyte

주요 개념

Strong Electrolytes

Dissociation in Solutions

Conductivity of Solutions

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