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A weak base $M O H$ of $0.1 N$ concentration shows a $p H$ value of $9 .$ What is the percentage degree of ionization of the acid?(a) $0.01 %$(b) $0.001 %$(c) $0.1 ...

Question

A weak base $M O H$ of $0.1 N$ concentration shows a $p H$ value of $9 .$ What is the percentage degree of ionization of the acid?(a) $0.01 %$(b) $0.001 %$(c) $0.1 %$(d) $0.02 %$

A weak base $M O H$ of $0.1 N$ concentration shows a $p H$ value of $9 .$ What is the percentage degree of ionization of the acid? (a) $0.01 %$ (b) $0.001 %$ (c) $0.1 %$ (d) $0.02 %$



Answers

A weak base $M O H$ of $0.1 N$ concentration shows a $p H$ value of $9 .$ What is the percentage degree of ionization of the acid? (a) $0.01 \%$ (b) $0.001 \%$ (c) $0.1 \%$ (d) $0.02 \%$

This question is almost exactly same. Tow the previous one. So let etch a B the week monitor erotic asset with initial concentration off 0.100 Where Making an i c e table on DDE The reaction This was ionization constant k A. Substituting in the values we have a value off concentration off age for the divine that is X equals 1.0 in tow tend to a stupid negative three. We know the formula for peaches. Negative. Log off it for the divine Substituting in that value we have a pH at three. We now have to deter mined the percentage off ionization that is equal to the that is equal to the concentration off ionized product that is positive. I divided by the initial reacted, multiplied with 100. Using this, we have percentage off ionization as one person. Same has to be done for option B and option C in auction be the value off excess under the value off ex. Turn out to be 1.0 into 10 days to plan. Negative, too, on the value off pH as too along with the ionization as 10%. Exactly same for auction see the value off X is one into 10 days. Tobar negative one in 10 days to one negative one. From that, we need to determine the pH, which is one that is highly acidic. Now we need to deter mined the percentage off ionization as it's 30 positive, divided by the reactor that is edgy. My deployed with 100 gives me 1.0 in tow. Henry's took one negative one, divided by 0.10 multiplied with 100. Gives me 100% organization. That is auctions. See, EJ A is the most acidic one.

Okay, so we have to calculate percent organization of an acidic acid solution having the given concentration. We have part A, B, C and D. So we know that the percent ionization constants all right. Not constant. This African ionization of acidic acid is the concentration of our age deal plus divided by the concentration of eights or are acidic acid Initially times 100%. So where they were gonna actually need to solve 42 values. So it starts. We know that acidic acid it c two h three Oh, to the axe Aquatic. See to it. 302 minus and age three. These are all concentrations were creating our people. Right now we know that initially the fatigue acid concentration is this one. This report and our products are changing our reactions negative. And I are changing. Our product is positive, but we have one minus x and X. So let's see. RK Valium is equal to the concentration of our products. Goodbye. You know that well, this is equal to looking back at our table at times X, divided by one minute sex that X squared my over one month sex and it's holding is equal to RK value, which is 1.8 times 10 to the negative five. Well, we know that our cable, he was quite an awful camped out by taking the irritable side to get X is equal to 4.24 to 6 times 10 to the negativity. Okay, so we have our exile, you know, So we cannot actually find our concentration of aged real close. And that's, um, and also fine. Or actually, I thought we need So we have the concentration of age three old plus divided by the concentration of arsenic acid. Initially times 100%. That's equal to we said our exile. It was 4.24 to 6 times tension. And they go today divided by one polarity. Right. This is our initial value of a Catholic times 100%. And this gives me points 42%. Okay, so this is the percent organization. For part came the code to part B. Okay, so I'm again going to throw out our table, so just give me a second here to write everything out, okay? These are nice table initially are acidic acid solution. Is that point Clyde, Our product is they're all our changes. Negative and change here is positive. Combined. These pills now call for K value. Okay, is equal to X squared, divided by 0.5 minutes, which is to go to 1.8 times 10 in Agra five again, or K. Value is quite small, so it counts out this. I'm well supplied by 0.5 on both sides and then take the square root so X is equal to 3.0 times 10 to the negative three. Now we have the concentration off our It's true, divided by initial value of it's C two h 302 times 100% discuss percent organization. So what was that again? I was three point there on time, Tim. In the negativity, divided by 0.5 climbs 100%. This gives me quite 16%. Okay, so that's a solution for part B R percent ionization of our critic. Now, for part C, we have but he again, we have er this time we have an initial concentration of ascetic acid of 0.1. Create our table. Okay. Our initial value for our products is both still are changing. Reaction isn't it affects and are changing products is father back. And now it's somebody. And in Salt Fork a about that's equal to our product. So x squared, divided by 0.1 minus that gives a 1.8 time 10 to 5 again. Kay is quite small boot camp with his ex out and then multiply both sides by 0.1 and take square irritable side when they get X is equal to one point B for one times 10 to the negative three. Okay, so this is equal to R H three old plus concentration. No, to find an ionization, we have our it threw a clot concentration time. All right. C two h three oh, to initial value times 100%. That is 1.3 for 16 times 10 with integrity divided by our initial, um, concentration of acidic acid, which is 0.1. Okay, so that's 0.1. The tires 100%. What does that give me? Now let's pull out my calculated at 1.3416 times 10 in there today. Delighted by 0.1 time. 100%. Give me 1.34 present. Okay, so this is percent organization for Port seat. And lastly, we have the We have a party which has a initial concentration of zero point till I say so. Okay, So using our table, we have the same setup to RK. Value is equal to X squared over 0.5 minus tax. Is he good to 1.8 times 10 and they applied. So then, um, our cave, always quite small, is canceled. Who have X squared is equal to 1.8 times tension and find touch 0.5 And now we need to take the square root of all sides. If you take the square root, we get exited with 9.4 68 time tension in the airport. And this is our Htoo concentration. So it's drill concentration provided by the H two h three oh to concentration initially times 100% Give me the concentration order percent ionization. So what will devalue 9.4868 times 10 to the night before on an initial value would 100.5 times that by 100%. Give me 1.9%. 4% ionization

Overwhelm. I think this question. We have a forming as a uh, These forming acid is a weak acid, which he has a value of K A is equal 1.78 times. Why didn't make it before? So now is this formic acid. When the solvent in the water it has a K A. Is equal 1.78 times fighting born in a negative four. So Jesus said Winner reminds a small amount of it. I nice to h postive and for me, too negative. So it's an issue of concentration. Is one so small amount of it X is a knife. Tow each positive end for me. So now we can rise a k A. Which is equal one. Boeing 78 times pi timber negative for which is a very small amount. It will be equals The concentration off plutonium, which is eggs. Times buys a concentration off from it, which is X divided by zero unorganized amount off for make, which is one negative X, and they do tow the K A value is very small, so eggs is neglected, comparing Beto the initial concentration. So now we can say that the eggs is equals. Aru off one by 17 a time Spy Timber Negative Four times by the initial concentration, which is a bar using is a calculator. We found that the ex is the ongoing 70 times pointing berm Negative four equal or going toe 0133 which is comparing it to the edge of our, which is a very small. So now he wanted recall. Creed's a percentage off formic acid own eyes. So it will be the X which is represent the amount off iron eyes for salmon petunia divided by the initial concentration, which is one times by 100. So the value will be equal 1.33% which is a very small amount. So these is answer if we use initial concentration. One What if we're the concentration on going fine? No change. Accept is that Innis it off one. Here we will boot or going toe. Fine. So instead of one year, we would over in five and the value of X will be 1.78 times by timber Negative four Times boy open five. Their value with equal mine. Stein's four time came over negative three. So Now we can calculate the percentage offer, mate, which is in mine buying four times by team bore negative three, divided by the initial concentration now is open in five. So dividing by open five times 1 100 So the value now off percentage easy. 11 born mine. And also he wants you to calculate if the minority is open one. You calculate it by the similar messa and it found the percentage is four point toe in eyes. And the similarity is your point on. Fine. We found that the percentage is five point a. They're Sandage and all will solve in boys their assumption because a k a value is very Thank you.

Okay, So I have to find the peak and the present ionization of the H H s solution. Given that our K for H F is 6.8 times 10 784 So let's create our ice table. So we have a constitution of H, yeah. Reacts with water to produce that minus concentration and ex trio plus so far away, we know that our concentration of each f initially is there a 0.50 And out of our product is books, though. So our chains and our reaction is negative and our product is positive. X and I like something now. It's all for K. Valium always said R K value is equal to 3.5 times 10 to the negative. For what? As equal to the concentration of our reactions. That's well, accidents X squared. Sorry. Not reacting. Products flooded by the concentration of our reaction would just 0.25 Oh, my. Now you see that r K value is quite small. So try cab going out our X here solving for X well, now X is equal to the square root of this value here times 0.250 But I give me 9.3541 times 10 to the negative three. So we found our change value. Well, that means that our HBO but concentration is equal to X value, right? Based on our table on r P. H is equal to the negative log of that concentration of age trio plus, so that gives me two point. They're operating now to find the percent ionization. That's this concentration of HBO divided by the initial concentration of a Jeff, but that people too, UH, times 100%. This is equal to nine points to be five for one times, 10 to the negative three divided by 0.250 times 100% Just give me a pretend ionization of 3.7. That's what we have for Part eight now to move on to Part B but again create our ice table. Have I e. This time or initial concentration is 0.1. Appoint one more. No, it's all for a cave. All you again if you go to 3.5 times 10 minutes before because two X squared, divided by 20.1 where it's exit time. Okay, Our cave I was quite small. I can put it out. Mmm. If you know that if we kept our approximate or the concentration is Melinda, it's not gonna be small enough, so we can actually can't come out. We're gonna call for it using the quadratic equation. So we have X squared is equal to 3.5 times 10 to the night before times 0.11 So we get X squared is equal to or a plus 3.5 times 10 to the night before times X minus 3.5 times 10 take five is equal. Well, that means that if we were you to use our quadratic formula, we would get X is equal to 5.7 for 37 times 10 to the negative three. Okay, So looking back at our table will tell you that our HD old concentration is act, which is equal to 5.7437 times 10 to the negative arcade. Valium. Is he considered negative log of car concentration and that gives me 2.24 and I percent. Ionization is the concentration of HBO plus divided by initial times 100%. So that gives me 5.7437 times 10 to the negative three divided by initially, we have what one was 100% which gives me 5.7%. Now, lastly, we have part. See again, let's create our ice table. This time we have a concentration of 0.5 Okay, so it's all for K value. Okay. Value is equal to ex squared over 0.5 minus X is equal to 3.5 times 10 to the negative for you get So what most my 0.5 minus like some old sights and move everything to our left hand side. So we get X squared plus 3.5 times 10 to the negative for times X minus 1.75 times 10 to the negative five people to go. So using our quadratic formula and solving you see that X is equal to 4.12 times tense in the three. So looking back at our table, we know that our ex real plus concentration is equal to that's good to have you here and then our patrol is he could shoot a *** Blog's are its real concentration closing that into a testament, we see that it's pretty equal to 2.40 and finally our percent organization, which is the concentration off HBO plus divided by the concentration of H. Initially, that's what I do with that. Give me 8.0% for our present ionization and there we have it.


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