December 07, 2022, 06:04:27 AM
Forum Rules: Read This Before Posting

Topic: Transmittance question  (Read 1651 times)

0 Members and 1 Guest are viewing this topic.

Offline QuickCheckDude

  • Very New Member
  • *
  • Posts: 1
  • Mole Snacks: +0/-0
Transmittance question
« on: September 16, 2015, 03:19:25 PM »
Hi all, I'm new to the forums and very thankful for them.  I hate when I can't find a simple formula online or in my books.

Well here goes it.

If the transmittance is 92 percent and a photo cell with a 12-mm
path length was used, what is the absorptivity?

Offline Corribus

  • Chemist
  • Sr. Member
  • *
  • Posts: 3384
  • Mole Snacks: +509/-23
  • Gender: Male
  • A lover of spectroscopy and chocolate.
Re: Transmittance question
« Reply #1 on: September 16, 2015, 03:22:17 PM »
Be careful with your choice of words. Absorbtivity and absorbance don't necessarily mean the same thing. I'm assuming you are referring to the latter. In which case, use the Beer-Lambert law.
What men are poets who can speak of Jupiter if he were like a man, but if he is an immense spinning sphere of methane and ammonia must be silent?  - Richard P. Feynman

Sponsored Links