[serotonin]

hey can someone please correct me if I'm wrong (it's for an exam I have tomorrow)

The molecule ΑΧ2Ε2 shows an absorbance of 1.00 at a wavelength of 5 µm. What is the % percentage of the incident radiation (Io) that is absorbed?

I did: A=log(Io/I) => 10=Io/I => %A=(I/Io)*100=> I/Io=1/10 => 1/10*100=10%
I didn't use the wavelength that is why I'm asking! Thank you for any hlp!

[Corribus]

You are correct, you do not need the wavelength to solve this problem.

[serotonin]

THANK YOU SO MUCH FOR REPLYING!!

[mjc123]

You have calculated the % transmitted, not absorbed.

[NotSoSure]

Thank you for your reply... Is there any chance you help me with the equation I need..My exam is in 2 hours :'/ thanks again . Or should I 100-10?

[Corribus]

If the percent transmitted is X, then the percent absorbed is 100-X (with certain assumptions).

[serotonin]

thanks very much!