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Author Question: Which of the following compounds would be likely to evaporate readily? Explain your answer. (a) ... (Read 80 times)

jrubin

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on: Aug 23, 2018

Which of the following compounds would be likely to evaporate readily? Explain your
  answer.
  (a) CH3(CH2)14CH3
  hexadecane


 

Question 2

In the preceding problem, which compounds could be vacuum sublimated?


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Dominic

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Reply #1 on: Aug 23, 2018
Answer to Question 1

Only (b) and (c). Fenchone will evaporate readily because it is spherically shaped. Pentacene
will evaporate becaue it is cylindricaly shaped. Hexadecane has a zig-zag shape and strong
van der Waal attractions



Answer to Question 2

Only compund C. The others would have such significant vapor pressure in a vacuum that
they would be lost into the vacuum system.



jrubin

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Reply #2 on: Aug 23, 2018
Thank you!


Dominic

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Reply #3 on: Aug 23, 2018
Always glad to help...


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