Question

Determine the value of rho for the reaction:

Answer 1

@aaronq I was told to plot the K\(\sf _H\) vs. K\(\sf _{OH}\) but I am actually unsure about this using the given data.

Answer 2

Any ideas?

Answer 3

i don't think i've done a question like this, what does rho represent?

Answer 4

\(\rho\) = reaction constant. I know its the slope of something. Are you familiar with hammet equation?

Answer 5

I feel like I'm so close to figuring this out but just dont know how 2 start it. dO u understand what i mean?

Answer 6

oh true. no i haven't come across this (though its interesting), but i get what you mean.

Answer 7

I found something similar here: http://web.viu.ca/krogh/chem331/LFER%20Hammett%202012.pdf

"Plot pKH − pKX versus the appropriate literature substituent constants (σ values) and determine the sensitivity factor (ρ value) for both the acid dissociation of benzoic acids and phenols used in this experiment."

Answer 8

i think it's the same concept, just a different type of reaction.

Answer 9

So, is this \(\sigma\) for the meta position of the \(Y\)?

Answer 10

I'm assuming. Would u concur?

Answer 11

yeah, I'm pretty sure thats it. Theres a table in that document with sigma values at the different positions.

Answer 12

Yes. I saw that. Thanks man! Appreciate it. I think I got it now.

Answer 13

no problem, dude. glad you got it figured it out!
this is really interesting though, can i know what book you're using? if you don't mind, i wanna read up on this

Answer 14

Not using a book. But, I know that there was a book that was recommended by my professor to "help" us: Advance Physical Organic Chemistry by Anslyn, Dennis A. Dougherty?

Answer 15

yeah, i noticed in higher level courses you don't use one given book. thanks, i'll take look at it.