A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 one year ago
What is the wavelength (in nm) of radiation that has an energy content of 7.67 x 10^3 kJ/mol?
I got myself confused on how to set it up.
anonymous
 one year ago
What is the wavelength (in nm) of radiation that has an energy content of 7.67 x 10^3 kJ/mol? I got myself confused on how to set it up.

This Question is Closed

aaronq
 one year ago
Best ResponseYou've already chosen the best response.0you have to get the value in energy terms (per photon, not per mole of photons)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0How do you set that up? Do you use the E = hv formula?

aaronq
 one year ago
Best ResponseYou've already chosen the best response.0yeah, but you need to divide by avogadro's number first

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0\[\frac{ 7.67 \times 10^3 kJ }{ mol } \times \frac{ 1000J }{ 1kJ } \times \frac{ 1mol }{6.022 \times 10^{23}photons }\]. You would use this dimensional analysis to find energy per photon (J/photon). This would be E Next use E=hv h is a Planck constant Find v which is frequency Then use \[c=\lambda v\] where c is speed of light. It has a constant of 3.00 x 10^8m/s You are to find lambda which is wavelength. It would be in meters. 1m=1.0 x 10^9nm Good luck solving it.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.01.56 x 10^11. Would that be right?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0You mean 1.56 x 10^1 Because thats what I got.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0How do you tell where it is on the electromagnetic spectrum?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0You write the answer in meters Then you would use this chart. http://www2.lbl.gov/MicroWorlds/ALSTool/EMSpec/EMSpec2.html

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0No problem! It can be challenging at first. Good luck on your work.
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.