Homework Help: chemistry

Posted by ashley b on Thursday, June 23, 2011 at 8:52am.

Calculate the energy in joules per photon of red light having a wavelength 655 nm. What is the energy of 1 mol of these photons?

chemistry - DrBob222, Thursday, June 23, 2011 at 3:36pm
E = hc/wavelength. This gives you the energy of 1 photon (in joules). For a mole, multiply by 6.022E23. Don't forget that the wavelength must be in meters.

Answer this Question

Related Questions

chem - A photon of ultraviolet (UV) light possesses enough energy to mutate a ...
Chemistry - A photon has a wavelength of 350 nm. Calculate the energy of the ...
Chemistry - A photon of ultraviolet (UV) light possesses enough energy to mutate...
Chemistry (Electrons in Atoms) - The wavelength of visible light varies from 0....
Chemistry - Calculate the energy of a photon of light with a wavelength of 360 ...
science - What is the wavelength of waves transmitted by an AM radio station ...
college chemistry - CH4 + 2 Cl2--> CH2Cl2 + 2HCl Cl-Cl bond energy: 242 ...
Physics - A laser used to weld detached retinas emits light with a wavelength of...
Phy - The index of refraction for a diamond for red light of wavelength 655 nm ...
chemistry please help - What is the energy (in J) of a photon of ultra-violet ...

For Further Reading

First Name:
School Subject:
Answer: