Ideal gases,Avogadro's number, Boltzmann's constant

[dat_student]

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Given kb is Boltzmann's constant & Na = Avogadro's number & assuming all gases behave ideally, what is equivalent to kb * Na?

 

[gatszu]

PV = nRT = NkT; k = R/Na

n = # moles
N = # molecules
T = temp in Kelvin
R = gas constant
k = boltzman's constant

 

[dat_student]

PV = nRT = NkT; k = R/Na

n = # moles
N = # molecules
T = temp in Kelvin
R = gas constant
k = boltzman's constant

You're right. Answer is R.

You got TS = 29. What books did you use and how long did you study for the DAT? Did you also get TS = 29 on Kaplan tests?

 

[heshyn2000]

Dat Student, throw us some organic chemistry questions 😉

 

[heshyn2000]

anyone up for some synthsis ?
lets start off easy.
benzene into 3-bromo-4-iodotoluene

 

[gatszu]

You're right. Answer is R.

You got TS = 29. What books did you use and how long did you study for the DAT? Did you also get TS = 29 on Kaplan tests?

i used the kaplan review book & practiced w/their subject tests. spent 5 or so hours a day for 20 days. I didnt take any kaplan practice DAT. i was scoring in the high 20 w/topscore. i credit my TS29 to my undergrad education & the kaplan subject tests. I think anyone will do well, if the individual does all the subject tests, reads every single answer explanation and understands all of them.