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The rearrangement of cyclopropane to propene at 500 % (CHz)} CH;CH-CHzfirst order in (CHz)3 ` with rate constant of 6.70x10-4 $"!.If the initial concentration ...

Question

The rearrangement of cyclopropane to propene at 500 % (CHz)} CH;CH-CHzfirst order in (CHz)3 ` with rate constant of 6.70x10-4 $"!.If the initial concentration of (CHz)3 is 5.45x10-2 M, the concentration of (CH2)z will be 1.60x10-2 M afterhave passed:

The rearrangement of cyclopropane to propene at 500 % (CHz)} CH;CH-CHz first order in (CHz)3 ` with rate constant of 6.70x10-4 $"!. If the initial concentration of (CHz)3 is 5.45x10-2 M, the concentration of (CH2)z will be 1.60x10-2 M after have passed:



Answers

The conversion of cyclopropane to propene, described in Example $15.5,$ occurs with a first-order rate constant of $5.4 \times 10^{-2} \mathrm{h}^{-1} .$ How long will it take for the concentration of cyclopropane to decrease from an initial concentration $0.080 \mathrm{mol} / \mathrm{L}$ to $0.020 \mathrm{mol} / \mathrm{L} ?$

This question is also an integrated rate law question or a concentration versus time relationship. Question where we need to determine the time that is required, knowing the rate constant and the order of the reaction for a concentration to change from 0.8 Mueller 2.2 Moeller. In order to do this, we first need to know the order of the reaction So we know which equation or integrated rate law to use. They tell us that it's first order, so we will use the first order integrated rate lie equation, which is the natural log of the ratio of the concentration at time. Zero to the concentration at Time T is equal to K T. K is given to us at 2.42 times 10 to the negative to one over hours as the concentrations are also given to us the only unknown that is time. So if we take the natural log of the ratio would get 1.386 set that equal to the K value multiplied by t. Then we divide both sides of the equation by the K value 2.42 times 10 to the negative to one over hours and t becomes 57.3 hours

For this question we have cycle of propane that is being converted into its eye suburb propylene. The reaction follows first order kinetics. The rate constant is 6.8 times 10 the negative 41 over seconds. And you're asked to calculate the concentration After 899 seconds. Knowing the initial concentration is .02- six moller. Because it follows first order kinetics, we can use the first order integrated rate law, which states that the natural log of the concentration at time T divided by the initial concentration equals negative K. Provided at 6.8 times 10 the negative 41 over seconds. Multiplied by time 899 seconds. With a little bit of algebra, we can then isolate our natural log of X -4.329, then take the anti natural log of both sides to get a concentration at 899 seconds a .013 to Mueller.

Okay, so we have Ah, substance. Just name. It s a we assume from one motor off a undercutting a position reaction. And ah, the composition reaction is fine. To be second order. We respect you a lot of substance and article of the way constant away constant. It's equals the super for, um, motor to the left of one and also means to level one. And what would be the time to which syrup on zero thio motor where Stuff from silver in one four. First, second order reaction The integrated well or will be, um, here one offered in your circles. Intuition plus Katie. All right, so we just want to find the time that we still once in row two. So he will be the, um, the time. Ah, at the end off the we asked you. So we just plug in seal for a serial, too, on the that will push you. Then you shall we received from one. And then kay will be Sierra 10.4, uh, motor, uh, over a minute, and then we will have our time. So the best thing we just did too soft for this equation, and then we should be able to find the time we were 100 minutes. I just can't mind that because there were calls the same in this. So with the final

Finally I think it is the nice part started. Hi think. Oh in our indicates initial panic countries. Well hiking pooping equal to Do you have a point? Do you do? Yeah. Six. Okay A. And B. Each kid final concentration of psychological thing. After time I think the indicated left time which is equal. 5 25 second. Your institute great constant equal to 6.2. Either dangerously covered minus school. For certain have to Catholics concentration inside after 525 section. You know that for cost ordered. Yes sir. Ellen final consideration after 90 the light. Right. Can you see it that countries fun is equal to. Mhm. This follows the country on this case. Two fighters candy violence. You know it is Yes you can use this this person. That's it. That's it psychological thing after time. 525 6. Their food concentration. Oh cited local things not good fight fight. Second being equals and it is equal. You're not thanks you this will be followed minus how Since you do the value of anarchy and being This expression is equal to 0.2 six Warner into media people and minus 6.0 in putting this power one is for for speaking. Think right. Mhm. Here to the phone too. Mhm. Mhm. Mhm. You just minus uniform. Mm hmm. Yeah. The simple calculator we can't even describe. And it is equal to 2.2 one six. Sorry. Mm hmm. Therefore decried concentration. Oh hi, please. Well there 505 speaking is equal to you can do 16 Hi, Did you ever find an answer? Right this problem?


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