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Ch.4 - Reactions in Aqueous Solution

Chapter 4, Problem 40

The following pictures represent aqueous solutions of three acids HA (A = X, Y, or Z), with surrounding water mol-ecules omitted for clarity. Which of the three is the strongest acid, and which is the weakest?

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Hey everyone, we're told that the following diagram depicts a quick solutions of three acids represented by H. X. With X being either A. B or C. Water molecules are disregarded for simplicity, identify the strongest acid and the weakest acid among the three first. Let's go ahead and look at A. So for acid A we want to determine the dissociated and the un dissociated molecules. So starting with A. We can see that we have 12 and three dissociated molecules. Now looking at our undecided associated molecules, we have 12345678 and nine. So we have nine un dissociated molecules. Now let's go ahead and look at B for B. We have 12345 and six. We have six dissociated molecules. Now looking at our undisc oc eight of molecules, we have zero. Next looking at sea we have 1, 2, 3, 4 and five dissociated molecules. Now let's go ahead and count our undisc ocho molecules. We have 1234567. So we have seven undisc created molecules. Now, the reason why this is important is because the strongest acid will be completely dissociated while our weakest asset will be our least associated. So looking at our acids, we can see that B is going to be our strongest acid since it has the most associated molecules. Now our weakest acid is going to be a since it has the least amount of dissociated molecules. And these are going to be our final answers. Now I hope that made sense. And let us know if you have any questions.
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