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Which picture below best represents solution of copper(IlInitrate moleculesLegend: Cu ion; nitrate ion; N: nitrogen atom; O: oxygen atom; HzO: water moleculeHzo...

Question

Which picture below best represents solution of copper(IlInitrate moleculesLegend: Cu ion; nitrate ion; N: nitrogen atom; O: oxygen atom; HzO: water moleculeHzoHpoHzOHzo HzoHzoHzoHzoHzoHzoHzo HzOHzoHzOHzoHzO Hzo Hzo HzoHzoFzoHzoHzoHzo Hzo HzoHzoHzo HzOHzoHzoDA

Which picture below best represents solution of copper(IlInitrate molecules Legend: Cu ion; nitrate ion; N: nitrogen atom; O: oxygen atom; HzO: water molecule Hzo Hpo HzO Hzo Hzo Hzo Hzo Hzo Hzo Hzo Hzo HzO Hzo HzO Hzo HzO Hzo Hzo Hzo Hzo Fzo Hzo Hzo Hzo Hzo Hzo Hzo Hzo HzO Hzo Hzo DA



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Which of the following pictures best represents a solution made by adding $10 \mathrm{~g}$ of silver chloride, $\mathrm{AgCl}$, to a liter of water? In these pictures, the gray spheres represent $\mathrm{Ag}^{+}$ ions and the green spheres represent chloride ions. For clarity, water molecules are not shown.

In question # 21. It has three pictures of three different beakers. It asks you to identify which of the following beakers best represents an unsaturated solution of sodium chloride. If it's unsaturated, that that means all of it has completely dissolved. If all of it has completely dissolved. Because sodium chloride is soluble is an ionic compound, it has separated into its ions. The first picture shows sodium chloride dissolved but existing as sodium chloride units. The second picture shows sodium chloride dissolved where chloride ions are separated from sodium ions. And the last pictures shows some solid sodium chloride, so it's either between the first or the middle picture, because sodium chloride as an ionic compound separates into its individual ions than the picture most similar to this one I drew here, which is the middle picture is the best representation of an unsaturated solution of sodium chloride.

Chapter six Problem 26 asks us to correlate these different pictures with the atomic molecules with their compound in acquia solutions. So let's go down the list and determine for each of these what the best ionic picture would be here. So, barium nitrate, uh, we write that out as B A and 032 Now we need the charge of each of these parts are each of these islands so we get be a two plus and n 03 minus? I know through minus is one of the irons you should memorize. You can determine the charge of barium one of two ways you can either look in the periodic table and notice that barium is then your second column. Those have a charge of plus two, or you can notice that it's bound to two and +03 molecules each other three as a charge of negative one. Therefore, if you are about the two of them, you need to have a charge of plus two. So which picture matches this one? We're waiting something with two plus and a single negative, and we noticed that all the way in the last one. So this one is Baalke way. Okay, let's look it be sodium chloride. This is the result of an a C L. So let's look at the charge for each of these on a is plus in the coloreds E l is minus which picture matches This is too go. That would be next. Let's consider potassium carbonate. That is K two C 03 And again we can assign our charges as before and we find we have K plus and C +03 tu minus. So now we're looking for a beaker with single positive charge and tu minus charge. And we see that in the 3rd 1 c in this It's also important to notice that we have twice as much positive charged molecules as we do Negative charged. And that represents the fact that we have to potassium is for everyone carbonate in this solution. Okay, Next, let's look at magnesium sulfate. This is M G s 04 and that breaks down into MGI tu minus eso for two plus and that matches at the last one that's left right here. Dear greatest question asks us two more parts. So next we want to know which of these would most closely match with H N 03 Still, it's a gun assigned charges. Here we have a church plus and No. Three minus. So we see that matches up with the 2nd 1 here that can also be each and now three. Now, the final question asks us why none of these are a good representation of H C two h 302 So when you take into account, here is each of these pictures shows the ions completely dissociated in the equally a solution. We don't see anything in any of these beakers that has the two ion still attached to each other. But in the case of H C two h 302 this is a weak acid, and a weak acid means that it's not going to disassociate completely into its two ions. So if we look at this in solution, let's draw that out in a beaker here on, and I'm going to simplify. The H has just r plus charge, and the whole C two h 302 is just a negative charge. What we're gonna see in solution is a lot of positive and negative charges still bound together as, like solids bottom or as just molecules throughout the solution. And then we're going to see a couple of positive and negative charges that have dissociated. This is a weak acid. The vast majority of the molecules are not going.

Here we have to identify which drawing is the best representation of the Aqua solution of Magnesium 19 in the solution, its molecular magnesium nitrate produces one MG two plus out and to nitrate dials. So the issue of magnesium too pleasant to nitrate ion is one is to now figures see Figure C has then Magnesium two plus ions and 20 nitrate ions. So the issue of MG two plus ions to 90 tons is 10, is 2 20. That is one is to to that is why figures C represents The Aqua solution, who are equal solution of Magnesia 90. So I figured C. Is the answer.

And this problem we have four figures that represent ionic solutions. The first one has to Pluskat ions to minus and ions. The second one has plus one cat ions and plus one and ions. The third one has to minus and ions and plus one cat ions. And the last one has two plus cat ions and one minus and ions. So barium nitrate, which is B A two plus with two nitrates at a one minus charge would be most represented by figure four. Where we have a two plus and twice as many one minuses. sodium chloride has a plus one and a minus one. Most represented by figure two. potassium carbonate, potassium has a plus one charge. Carbonate has a tu minus charge best represented by figure three. And magnesium sulfate has a two plus and a tu minus best represented by figure one. Nitric acid has a plus one on the hydrogen and a minus one on the nitrate. So best represented by Figure two. Acetic acid is not best represented by any of them, because these are figures for strong electrolytes, as mentioned in the problem, and acetic acid is a weak electrolyte that only partially dissociates.


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