use-the-information-provided-in-the-table-to-determine-the-mathrmh-concentration-and-the-ph-for-thes

Question

Use the information provided in the table to determine the $\mathrm{H}^{+}$ concentration and the pH for these weak acid solutions.

(Table is not available to copy)

Ronald Prasad · Accepted Answer

it&#x27;s used the information provided to determine the H plus concentration and pH for the following week. Acid solutions We know that for a weak acid, the pH is equal to the negative log of the A or we can turn this around. Kate the H less concentration. Yeah, I know we can start with that. Think about. Okay, So for the first one, we&#x27;ve got 0.10 Moeller Ben&#x27;s OIC acid. Therefore, the pH is equal to negative log of the 6.3 times 10 to the negative five, so this would be equal to 4.20 in the H plus. It&#x27;s equal the 10 to the minus pH, which is equal to 10 to the minus 4.20 This would be equal to 6.3 times 10 to the negative five Mueller. So there&#x27;s a pH and H plus in concentration 4.10 Mueller hair. Uh, chloral benzo kassid BPH. You could the negative log of K A just 1.0 times 10 to the negative four that&#x27;s of equal to 4.0 and the H plus beak with the 10 to the minus 4.0 This should be equal to 1.0 times 10 to the negative. Four Mueller. Next, we have 0.10 Moeller pere natural Ben&#x27;s OIC acid The pH stick with the negative log que values 3.7 times 10 to the negative four. This will give me a pH of 3.43 Huge plus sign is 10 to the minus 3.43 which is equal to 3.7 times 10 to the negative for Mueller. And lastly, we have 0.50 Mueller para nitro benzo a kassid. The pH is equal to you. Negative log of the E. It was 10 to the negative four. This is equal to 3.43 and the H plus sign concentration with the 10 to the minus +343 which is equal to 3.7 times 10 to the negative. Four. Moeller

Cinsy Krehbiel · Answer

if we know the hydrogen ion concentration, um, of a substance, we can determine its pH. Based on this log rhythmic function, pH equals negative log based 10 off that hydrogen ion concentration. So we have a mystery substance and were given its concentration. And we want to know the pH so that we can determine is it&#x27;s acid or base. So the Ph is gonna be minus log based 10 of 3.5 times 10 to the minus nine, and we use a calculator. We find that log based 10 of 3.5 times 10 to the negative nine is negative 8.455 and change. And if we negate that, we get a positive number. The pH is approximately equal to 8.5, which is larger than seven. Right? That&#x27;s greater than seven. Therefore, the substance is a base. Less than seven is acid. Seven is neutral

Cinsy Krehbiel · Answer

So if we have a substance whose pH measures six and we had some acid and change the substance to have a ph of four, we want to know how much by what factor? The ion concentration changed. So before we had an ion concentration, let&#x27;s give it a subscript of one. And after we had an ion concentration of two and we want to know what did we multiply the 1st 1 by So it did some factor times h plus so one And we ended up with age plus some, too. So that factor is the ratio of the after concentration divided by the before concentration. So if we&#x27;re gonna figure out that factor, that ratio, we&#x27;re going to have to solve our pH equation for hydrogen ion concentration. So to do that, we&#x27;re gonna isolate the log, which means we multiply both sides by negative one. And then we&#x27;ve got our lager, them well isolated log based 10 hydrogen ion concentration. And now we can, uh, exponentially eight so that we can basically get the inverse of the logarithms. We could get that concentration out of there. So when you exponentially eight, it&#x27;s only the inverse function if you use the same base or in base 10 and with inverse functions, what used to be the output becomes the input. What used to be the input becomes the output. So the hydrogen ion concentration is 10 to the minus p age. So our factor here is going to be the hydrogen ion concentration of, um, the first guy, which is 10. Excuse me. The second guy tend to the minus. PH remind us for divided by 10 to the minus six, which would be the pion concentration of the for to the before state and 10 to the minus four. Divided by 10 to the minus six is 10 to the second power, which equals 100. So the hydrogen ion concentration went up by a factor of 100.

Sharfa Farzandh · Answer

in this question the tour about a scenario that we have ah, solution off hydro sulfuric acid with the concentration off orange 10 AM So hydro sulfuric acid, which is also known as hydrogen sulfide, is your attended today and met so that we have a concentration off wind 10 am and after providing us with this information, they were asked to calculate a number off, um, quantities were asked to calculate the equilibrium hydrogen sulphide concentration, which will be a tiny bit less than this initial concentration. But we are going to assume that it&#x27;s the same as the initial concentrates, because that is very little dissociation, this being a weak acid. So they are asked to calculate this, and then they are ours to calculate the hydrogen emissary of the Astra gavel, it just minus concentration, which is the congregate based off hide yourselves very tested. And then the satisfying iron concentration, which is the fine a, um, congregate based we get from to the association&#x27;s off hydrogen sulfide and the hydro. Any of my inference situation wand bi ATCH. There are P O. H value and, uh, I dropped the lion concentration. So let&#x27;s try to calculate these battery teachers with the information we have provided it. So the first association off from hydrogen sulfide can religion today hydrogen sulfide there reverse anybody for it just minus. And it&#x27;s us. So this is also returned with a water molecule in the equation, which is the better that right? So let&#x27;s write it that way. This provision are fine. Bill reacted water in a diverse civil manner to a farm hydrogen two from the N i in of some the hydrogen sulfide molecules and by drawing him lions and then in a second association steps, starting with it just minus what again, again in directed it just minus. And, um, make it undergo another dissociation step and lose. Ah, hydrogen too far. So fight and islands. And I tried drawing you miles. So there are two steps, um, off the dissociation off this week, acid. And for that reason, we are given to okay a values known as the cave on for the first step on the look a two for the second step. So, like I said before because this is a weak acid and K, Evan and Kate two ah, very much smaller than one, we&#x27;re going to assume that the equilibrium hydrogen sulphide concentration is the same as the initial hydrogen sulphide concentration. So we have an answer to one of the questions. We know that the hydrogen sulfide concentration is equal to 0.10 Okay. And, um, if the road down the expression for the k A, we will get this back. Avon is equal to it just minus by trying in my own concentration. And did I just by the hydrogen sulphide concentration. So we have going to be making several assumptions in this calculation. Another assumptions that that they&#x27;re going to make is that the concentration off just minus is equal to the concentration off. Um, Hydro Nehemiah owns. If there was only one in the association step, that is true. It will b e quit, however, because there are two associations here and both of them produced by drawing in my hands, there might be slightly move hide on in my owns, Then it just minus ions. However, again, there is a very small K A to value for this. It&#x27;s just mine of species. So the additional hydro Nia, my owns are the excess is so small that it is almost insignificant. So we&#x27;re going to assume that the it is minus concentration is equal to the hydro Nehemiah in concentration. It&#x27;s es your that we can. Could you doctor sparked immigration and say it just minus squared, divided by it&#x27;s Jewess Concentration in this equation means OK Iran, you know, hydrogen sulfide concentration. You know, the hydrogen sulphide concentration because they are going going to assume that there was value Any dissociation off hydrogen sulfide are meaning that it has nearly the same concentration as are the beginning off the reaction. So making cash to let the hydro knee Um I&#x27;m sorry, the it just minus on concentration from this by taking a on multiplying that by s concentration and then taking this crab. If we do this, we get this value nine point sides times 10 to the negative five more. And like I said, because the concentration off the edges minus science are equal to the concentration off the hydro Nehemiah owns, This is also equal to the high drawn you my own Constitution. Okay, so so far we have calculated three pattern majors. So now that we know the hydro Nehemiah concentration, we can calculate the pH value. The pH value is going to be the negative lark after hi, drawing him my concentration. And from that day creation, we get that. I think the pH value is a portable four point. And because there are two signature country girls in the value that we used to substitute for the Hydro Neiman concentration nine and five, those are the two significant tickers that reason robin really two significant figures after the decimal point in the Ph Valley. So now we know the pH value and the next Mass to calculate the always trying concentration and the purity value. Let&#x27;s let&#x27;s do the P o Italian first because, uh, we know the some off the pH value and be or its value at 25 Celsius degrees. So at 25 says yes degrees. Oh, but the periods value will be equal to 14. Miners appeal pH value, and that is equal to nine point. Nor ain&#x27;t age. And once we know the P or it&#x27;s values since the carriage lead, there pH value from the hydroxy line concentration, we can back calculate the hydroxide ion concentration from the beauty chatting. So this is gonna be good up in tow. The negative be rich value, which is the 9.18 and after be equal to run, find 05 times, 10 to the negative. 10 more. Okay, so we have just wanna, um, quantity to catch ledge and that is there as to minus concentration. So to do this, it&#x27;s just it is They have to use the second dissociation during the second association step. We know that it just minus the exit water reversible E to farm is to minus. Yeah, no hydro in your miles. So the K value for this, which is scared to, would be equal toe the concentration office s tu minus the concentration off right on your miles and the concentration off it just minus so year. We can&#x27;t say that the concentration off sulfide ions are equal to the high drone humor and concentration because we have two associations and there is a lot off Heidrun you My answer be got from the initial association steps. So we&#x27;re going to substitute the hydro Nehemiah concentration that we got from the initially. This was ish. Like I said, uh, the association&#x27;s, uh from the second step is so small. Come back to this first step. So the additional hydro Nia my arms synthesized is going to be solid And ah, so we can use this equation to calculate the and sad If I die in concentration and the three solid for the Southside ion concentration, we get this. Yeah, and you get it through Maraj applied by it Just minus, which is that Oh, Jack, turn for this reaction. And then we have to divide this by her. Hi. Drawing you, man concentration. And as you might remember, the hydro Nia mind concentration be assumed was equal to the inches minus concentration. Because if you remember the first, the first association gives boat tradition. Uh, I&#x27;m sorry. Hut! It just minus. And, um, I drawing in my house and, uh, the considered their concentrations to be the same. A badge Ease on. There comes in this equation. Cancel out each other to these dormant, cancel out each other because they are equal to each other. So the Salvadoran concentration is going to be equal to decay. I do that which is equal toe one times 10 to the negative 17. And these are the values that diva supposed to calculate

Ankit Gupta · Answer

According to the question, the pH is given as minus off He&#x27;s equals mind soft lottery, then missed in H plus concentration. Now, according to the question, Baseless concentration. We have to find the stress concentration for a solution. Who&#x27;s pH is 5.8? So pH is giving us high 0.8 and we have to find the express concentration so this will become minus off pain. H bless. So if we multiply both sides of the question by minus one, So this week a minus five point a equals love this skin I ate less no minus 5.8. Can Britain as love Off Dan Base 10 can restore power minus 5.8 equals Love this 10 eight list? If you compare both this lot conscience, then we will see that the value off its plus that this concentration of the science will be equal. Stain Minister. The power minus 5.8. Now the industry power minus or 5.8 can be written as pain mystery power minus off. Six less zero point. Therefore h nurse become Dean wrested power 0.2 multiplied by gain recent power minus six. So it&#x27;s just become it&#x27;s place will become 1.5 e 1.58 that it&#x27;s dangerous. Reports that point to is approximately equals 1.5 multiplied, breaking their study power minus six. So this will be our final required answer.

Amy Jiang · Answer

so for discussion, were asked to evacuate the pH of our aqua solution with the Our Age plus 298 Kelvin. So we know that R. P. H is equal to the negative dog of our concentration of age plus, which is 0.55 put me into a gas meter. We see that this is 2.3 and we could do the same for a party. R P H is equal to two negative log uh, 0.84 and that gives me 4.1 as our peach.

Problem

Write equilibrium-constant equations for each rev…

Problem 4 Easy Difficulty

Use the information provided in the table to determine the $\mathrm{H}^{+}$ concentration and the pH for these weak acid solutions.

(Table is not available to copy)

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