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In the Markovnikov addition of HBr to trans-2-butene; the rate Is dependent on which of the following?there is no dependence between concentration and rate in this ...

Question

In the Markovnikov addition of HBr to trans-2-butene; the rate Is dependent on which of the following?there is no dependence between concentration and rate in this reaction the concentration of the alkene onlythe concentration of HBr onlythe concentration of HBr and the alkene

In the Markovnikov addition of HBr to trans-2-butene; the rate Is dependent on which of the following? there is no dependence between concentration and rate in this reaction the concentration of the alkene only the concentration of HBr only the concentration of HBr and the alkene



Answers

Consider the reaction.
The graph shows the concentration of Br2 as a function of time.
a. Use the graph to calculate each quantity.
(i) the average rate of the reaction between 0 and 25 s
(ii) the instantaneous rate of the reaction at 25 s
(iii) the instantaneous rate of formation of HBr at 50 s
b. Make a rough sketch of a curve representing the concentration
of HBr as a function of time. Assume that the initial
concentration of HBr is zero.

In this problem we have to define the rate of reaction of HBR and then relate it to the rate of formation of PR to let us consider the reaction. Mhm. Yeah. Mhm. Four more soft hydrogen bromide reacts with or to gas. Mhm. To produce two months of pr to gas. Mhm And two months of it's too yes during the reaction as time passes the concentration of HBR decreases and concentration of the R. two increases supposed in time interval. Mhm. Mhm. Uh huh. Mhm. Yeah. Mhm Delta T. Yes. They praise in Yeah. Mhm concentration of HPR is DELTA. It's beer. Yeah. And increase in concentration. Mhm. Yeah. Of we are too is. Mhm. Yeah. They don't appear to. Yeah. Thank you. The company here, Delta sign denotes change. And this choir. Yeah. Mhm. Okay. It's Yeah jacket so the concentration. Okay. Mhm. Yeah mm Yeah. More poor later. Right. The rate of the action of HBR could be obtained by observing the decreasing Mueller concentration of HBR in time interval Delta T. Therefore mhm Mhm rate of reaction. Okay. Mhm Yeah of HBO to mhm. Yeah is equal to yes. Yeah mm decreasing yeah. Okay. Mhm mhm. Mhm concentration yeah of HBR with respect to design clean, terrible. Yeah That is equals two minus delta. It's pr divide by delta team here minus sign is put before the changing Mueller concentration of reactant. This shows that Mueller concentration of reacted decreases with time. Mm. Beautiful. Yeah. Yeah. No rate of Yeah mm For mason. Oh they are too is equal to Mhm increasing kicking. Yeah, concentration how pr two divide by Mhm. Time interval. Yeah. Yeah that is equal to plus delta. We are to divide way delta T positive sign is put before the changing Mueller concentration of products. This solves that Mueller concentration of product in these days with times. Yeah. Yeah. From balanced mhm. Chemical equation. Yeah. Okay. I want to be we obtained that. Yeah. Four more soft it's br yeah produces Mhm two moles of be our guest. Mhm. So in order to acquire the rate expressions we need to divide each rate X. Prison by the strike, geometric coefficient of corresponding substance, careful mm rate of many people. The accent is equal to yeah. Mhm -1 x four times changing concentration of HBR with respect to time Delta T. Is equal to everybody positive one half times changing concentration of We are too with respect to time peter therefore our final answer will be okay. Mhm please. Mhm rate of reaction of HPR equals two minus changing concentration of H. Pierre with respect to time. Yeah. And the relation between the rate of reaction of HBR and rate of formation of BR two is yeah -1 x four times changing concentration of H. P. R. With respect to time Delta T. Is equals two plus one half times Changing concentration of br two respect to time dale dougherty. Mhm. Oh okay. Right. Yeah.

Here we're gonna consider the regional selectivity. Yeah. Uh huh. Of these determinations. So how effective efficacy with regional selectivity. Okay, so if we're looking at a tube muscle butte team versus a one With two metal 1 beauty, which um compound would be would form. They would basically form the exact same product when we add it with HBR. Okay. The exact same site, we would get the tube two metal to Bremer or two bromo to metal psychlo beauty or not to be too two metal tube remote beauty. So in this product which um re agent will be able to reach here in the highest yield, basically I steeled meaning which compound has the highest efficacy. Two produced this more stable to bergamo position versus The one or the three. So if you look at them, this compound here, we can tell that if they want to have produced the tube ramon, It would have then produced the three Bromo. It's a side product potentially here. And since this would have had a secondary carbo carry on, intermediate to reach there, all this compound will inform something even bit more Unstable would have formed the one Bromo from primary carbon cutting off. Okay, even though what's most favorite is this Treasury domination, we can tell them that this would have been in the highest yield because it's basically um inter converting between a primary carp acadian and a Treasury carpet carry on in the intermediate. So the difference between primary and tertiary is quite large. So the Treasury is much more stable than the primary. We'll hear the secondary is just lightly less stable than the tertiary. So due to this magnification in the stability of the intermediate, we know that this um axel sort of terminal parking. It's the more stable or enough more stable. The one that can produce the desired product in the highest yield. The highest advocacy for this Treasury regional selection. That's basically how we're able to compare. So then if we look at cyclo vaccine, one method cycle vaccine, which is a to psychlo vaccine in front of them being exhausted, click. We can also then say that, okay, this one would have reduce this kind of intermediate watching like this. So very so it's quite unstable. Not only exocet click, but primary carbon cut out what's unique to this compound. It would have produced the secondary carbo Kellyanne. You know, the most stable carbon kinda that both of them can um form basically is the tertiary site there. So since both of them can form this Treasury site, this one is forming a primary as well. And this one is performing a secondary as well. We know that this exotic look. one is most reactive and just so it will produce the tertiary and the highest selectivity since Treasurys far more stable than primary. So it's has the highest. We just selection. Yeah. Okay.

Hello, everyone. My name is Mohammed Ali. Now we will answer the question. Considers a reaction. It's uto glass pr to for me to Italy are the graph shows a concentration off br toe as function off time. Use a graft to calculate each quantities averaging. So from the reading off the first bar, this question is related to the rape, so must knows his relation before answers. This question. The 1st 1 is the real, uh, he's a reed is equal minus sheen. Their concentration off B R. Two with Stein we cause a B R to his reactor. Also negative chain in EJ toe with Stein and both Steve off boasted because we will speak now about H B R. And it should be our is broader and for two more. So now this is a relation. You must know it's mine. When we want to know the rate off reaction, we can write it by other message that the reed is equal. The read off, decreasing pro mean and read off, decreasing on regime and real or formation h b r. But we must dry half, so you must know these relations before we going toe. Answer the question from this questioning Want to you to use the graph so we must know the scale of grab zero and the's to Auntie 30 40 And here 50 saw Each line is represented. Why in the year 0.2 you're going for and from in your twosies is represent or 0.0 point 1.2 points three upon for upon five upon sex 4.7 point eight No, we would answer the first question. The first question he wanted. You can clean the average rate of reaction between zero and 25. So here is given to me the concentration off for me. So we will use these relations. Sad saree is equal negative there the concentration off B R two at 25 2nd negative concentration off B R to N zero divided by change off time So 25 negative zero This question It will be negative. Concentration off poor mean 25 stand This is 20. So here is 25 Go to the girl. It will be here at the middle, So it will be all 0.75 Answer concentration off bro mean add zero It will be go up, It will be here. So it will be mom divided by 25 negative zero. So by calculation and the result will be, Oh, Boeing or Mom, This is the answer off. The first bar question on now we are going toe. Answer the second question off the bar A which you want to know the instant you a straight off reaction at 25 seconds to know the Amis tenuous. It's continuous ring. We must reaches a 25 by the curb which cut it as this point. And from this point we must drew attention. So here I reaches a 0.25 to the care and in hydro danger. Then, after droning their danger, we choose any two point off concentration and the Bosnian bhai's attention and the show. What is the related time? So here he want to know the rate of reaction and we said before the read off reaction is represent the change in concentration of premier divided by time. So from the line, we will change it. Choose this point which he is all point A that got ends a time 20 and we will choose this point which is here and it represent opening 55 and connected it here. It will got a 50. So I choose now that toe point that constant attention which is and 50 and 20 type at 50. It card at concentration. 0.55 and And Wendy, it got at oh, boy in E. So by calculating a we found the reed is equal. Oh, point or or a three. So this is answer off. Read every action at 25 seconds. Let's go to the survey question off the bark a. The certain question you want to know there any stenting you strain but now for the formation. But now is four formation off h b R. So it should be are we must related it by premier because this question is answer for permit. So if we go to for the first part, the rate off women is haves a rate off h e r. So we can right now. If we know the re off b r two, we will times it by toe to know the raid off h p. R. So we will solve it it as we measures Ari off br toe at 52nd Then we can know the read off, Actually, Are there it off? B R two is equal Negative change off the concentration on B R two divided by time and and we want at 50 seconds for gay to solve is is you will reach point So the curve a 50 then you will grow danger There we will it choose any two points from concentration and connected them to attention and see the corresponding time which we want to know the slow as we calculate the slope off the stage. So here which shoes there. Ah, time 30 In time 40 We found that at times 30 it cut at boy seven and at a time 40 It got at time at concentration opening 65 So now which was a poin which are 40 negative 30 at fort is a concentration is open 65 from grab and a 30. It's opening seven from grab win Cut the danger So now we can calculate the rail which is all point or fine. But don't forget that this is a read off for me. So to know they read off which we are We must time it by two So raid off H B R. Well, the O'Brien or Mom, This is the answer off the search bar Off the first question. Let's go to the second bar for the second. The bar. He wanted you to draw a roof sketch once a meaning off roofs sketch roof. Sketch me. We wantto only you draw a quick without calculation. Exact off curve represents the concentration off HB oris function off time. So now he wants you to represent how the concentration off the product H e B R will be increased. In fact is entropy are start from zero and it will be increased quickly. Zen the decreasing in B R. Two Because two moons are for me and we found it. It's halftime, so it will increase quickly than the decreasing in B R. To which I mean that they're one amount is decrees in 100 seconds, but here it will increase for the job or the Simone at 50 seconds. So this is a sketch for HB on. And this is the answer off this question. Thank you.

In this problem, I can write the reaction at actually see http All Too c double born CH two in pageants of HBR will give this component see http all Too C plus CH three. This is three degree, get Diane and on further reaction it will give see http All Too CB odd Ch three as the final product. Therefore, according to the option option D absentee age, correct answer here in this problem.


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