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42,46 '762 23. Predict whether precipitate will form from the combination of 25 ml of Lx_10# M Co(NOs)z ad 75 ml of 5 x 10-4 M NazS_ Co(Nogha #8 €az+ (Na...

Question

42,46 '762 23. Predict whether precipitate will form from the combination of 25 ml of Lx_10# M Co(NOs)z ad 75 ml of 5 x 10-4 M NazS_ Co(Nogha #8 €az+ (Na)

42,46 '762 23. Predict whether precipitate will form from the combination of 25 ml of Lx_10# M Co(NOs)z ad 75 ml of 5 x 10-4 M NazS_ Co(Nogha #8 €az+ (Na)



Answers

Predict whether a precipitate will form if you mix $175.0 \mathrm{~mL}$ of $0.0055 \mathrm{M} \mathrm{KCl}$ solution with $145.0 \mathrm{~mL}$ of a $0.0015 \mathrm{M} \mathrm{AgNO}_{3}$ solution. Identify the precipitate, if any.

Hello everyone. So in this question we have been given the volume of Casey and that is 1 75 women. And its concentration is 0.5 AM While the volume of age and three is 1 45. And Its concentration is 0.0015. a.m. So for the newly mixed solution, concentrations are calculated as follows for sale, negative one Will be equals to 0.055 M. Into. You're a .175 health leaders Upon zero point 145 L. Into plus serie less. Little .175 Which is equal to zero 003 M. So now Constitution of uh Silver Island. The solution will be, I'm going to be like this only 15 PM In 20 145 Sorry for the 100 guys A .0.145 plus zero point 175 And Which is he goes to nearly zero 000 679 AM. So no. KSB OF GCL is a. KsB of a d c is one point 77 to 10 issues of our minus 10. So we'll have to calculate Q. Of this year to it was too a. D positive, feel negative. And after calculating this, it will come around 2.03 into 10 nations develop -6. So now as we can see that Q is greater than key sp so the formation of precipitation takes place. Thanks

So in this video, we're going to be answering question one of four from Chapter 17 which asks us to predict whether a precipitate will form if you mix 175 milliliters of a 1750.0 by five Moeller Potassium chloride solution with 145 milliliters of a 0.15 molars. Silver nitrate solution. Identify the precipitated many, um, so after mixing, these are Casey, Eleanor, aging, and of three, the possible products. We conform R K and 03 and A g C L R potassium nitrate. Will. Nitrates are generally soluble, so we don't need to worry about that. But our silver chloride or agency l could former precipitate here, and we need to figure out whether or not it's going to eso. We always have this equilibrium between solid and ions and solution, which allows us to calculate our sally ability. Product constant rk S p is the product of our, um, concentrations of ions and solution. But our KSB is when we plug in those concentrations those equilibrium values. So if those concentrations do not correspond to the equilibrium values than were actually calculating what's called a reaction question que, um, Knowing how big Q is relative to Kay allows us to predict which way we're going to have to shift. Whether we're going to form more products or reactive is before we reach equilibrium. I'm so in this case, we want to know what will cause our equilibrium to shift back towards our reactant towards our solid a G C L. And not R a G pleasant c l minus ions. And that's gonna happen when Q is greater than case. We want to calculate this Q and compare it to Kay to figure out if Q is larger than K, which will mean we're forming a solid. We're forming a precipitate. So to do that, we need to first get our concentrations of energy plus in seal minus so we can use C one V one equals C to be too. Um so for Casey L we have our 10.55 Moeller times 175 mil laters equals whatever ending concentration is. Times are total volume 320 milliliters like Is this the potassium ion concentration of 0.301 Moeller. And that's the same as the chloride ion concentration. I see I accidentally wrote chloride in the second equation. That should actually be a G plus and or in 03 minus. It would be true for either a Jeep Luster and 03 minus. But again, we do see one V one equal si tu vy to and just solve for C two to get our concentration. And now we can plug these into our expression for Q, which is just concentration of 80 plus times concentration of C L minus. So we played those. Then we get 2.5 times 10 to the negative six. Um, and our Sally Ability product constant was 1.77 times 10 to the negative 10. So Q is greater than K by about four orders of magnitude. So this means that we have more ions in solution than there would be an equilibrium. So in order to reach equilibrium, some of those ions and solution are going to drop out of solution to form solid ages eel. So we are going to form a solid agency. L precipitate

Everyone. My name is in this question we have to solve. Which is the 1st 1 is Ah. So do you mind group sign which he has a B o h is equal as stated here, five e our exist with the solution off Magnesium. Mmm. Could dry, which is concentration is open toe 18 more clarity. Uh, in this question, he told us amount off. So do my dark side. Makes it is 75 million liter isn't. Mix it with amount off my ignition cry. 100 25 millilitres. A question here is amount. We mix it with these amount. Is there a press ity for me? First off the answer. Jeez, what happened with these? Reacted together. Busy forming magnesium hydroxide and for sodium chloride, sodium chloride. Is this solvent? While magnetism on group site is a compound the half K s B Z one toe boy. 06 times fighting negative. 13. So I don't know if this prosecutor form it or not. We all know this is a magnesium on Brooke sign. We deserve a small amount of silver and the other remain. And among the desert is it's, um It's convert to magnesium blast to last. To which negative And we know right this case is B. It's represent a concentration off magnesium blast, too. Times vice a concentration off. It's you get there, which is negative power to this is how can radic a speed. So now we want to know is this amount. We mix it together to form a precipitate it or not to answer Jerry's. We first said the concentration off H negative in this solution is but a prison. Its initial concentration, which means the B. 00 H, is 2.58 the concentration off, which is still in negative 2.58 and the initial volume is 75. As it's stated here, why the concentration of which is the total volume is 75 plus 1 to 5. So this is the concentration off. It so may mean easier cooler rights on here. So magnesium corn rye is represents amount off magnesium so we can stay that the concentration off magnesium blast, too, is equal. The concentration initial off magnesium chloride, which is opening toe a one a times of my 102 5 divided by the toe, tell voiding so This is a concentration off magnesium plus two. So now we can calculate value. It's cute, is similar to the law off K S B. But using disease concentration which is a concentration off magnesium times vice a concentration off. Ohh, negative power too. So then we compare the results. Cue boys. A K is big by some we found is a phone using a calculator. We found that the queue is higher Sense of value of kiss piece that we stated here. So that's mean the precip t will be for me. Thank you.

Inebriation off our mixture off sodium hydroxide and Magnus she, um, chloride. The possible precipitated that can reform this magnesium hydroxide. So if the precipitate will form or not, that's it. Depend on the relation our variation Kocian Velo form ignition hydroxide to its scarce be velo. So if the creation caution well is greater than the case Provolone form ignition. I had drug site then Ah, this will for the r dissemination hydroxide will be formed as a precipitated. So to find that Cuba, we have to know that concentration of magnus amount and way down in the mixture. So three the initial concentration here for sodium or the hydra surround You know that we have toe we're given the b o h velo for the sodium hydroxide is DuPont five eight that men's um and ah which minus concentration will be the negative flow. Now r the ten to the poor minus stupor in five. As the peerage means the negative log off hydroxide ion concentration And so this will be. And if we just solve it we'LL find the valorous two point six three times ten to the power minus three Mueller So this is the concentration our initial continent overhead rocks around and then we're given and the Magnus in glory solution. Consolation is your open zero on it. And since from one McNish in grade, we will have one McNish in ion. That means the concentration of the magnificient parade is the initial concentration of Magnus Sherman also. So the concentration off empty two plus will be syrup aren't zero one eight Mueller. Now this air about the initial consultation of hydro surrounded and YouTube, lasagne and sins, we're mixing toe different volumes from the solutions we have to find out their final concentrations. So we're adding, So we have to find this from the formal off. One few on is goingto himto Vito. So let's first do it for the hydro surround. So if em one is hydrocodone, initial concentration villain is its initial volume and came to is the final concentration and veto is the local William the solution that monsieur to solve it for himto are em two for oi each miners that will be. They want everyone over it too. And here in one is the initial initial consolation off which minus which is two point six three time into our miners three and the initial volume for which menaces seventy five ml. As you're adding seventy five level of sodium hydroxide and the Vito here is the total solution volume now which is seventy five plus one. Twenty five that ms two hundred ml and it is Solve this. We'LL find the empty Vela's nine point six eight six times ten to the power minus for molars Oyj minus. So this is the final confirmation of hydro sarin. And then in the same way, we can solve the final concentration off magnification ion which will be the initial concentration of mag Mission Man as zero planned zero one eight and then we have the initial follow him as one twenty five Mueller and the feet is the total volume two hundred ml Then we'LL have the final empty two plus concentration as one point one toe five times tentative are minus three Mueller This is the final consolation for engine two plus. Now we know that both the hydro Syrians final concentration and Magnus humans final concentration Now the creation caution formula for a compound off am X m is, um and X n from that will have in Minas Oh, and plus I am. And then we have X A minor is sort of the bar in So here are our formula for ammunition hundred cities M g O h too see if we just use our the compact this formula to this we'LL have our reaction Kocian value form ignition hydroxide as, um engine two plus times which miners and tell me this square for this too. And if we just put the final concentrations value's off magnification And had you said ion in this formula will happen, I should caution value off one point one times territory minus nineteen And now if we find the case p Vallo form ignition Hydra, aside from a table will see that the values to point all six times ten to the poor minus thirteen So happened it from here in the queue Velo for my nation my decide is greater than the case be velo And as they have already said, that if the queue va loom is greater than in that case be fellow that men's the com bone will form a precipitated That means in this reaction are in mixture mg oyster magnesium hydroxide will be precipitated


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