A molecule released to the atmosphere has a dissociation energy of 515 kJ mol -1
ID: 1024113 • Letter: A
Question
A molecule released to the atmosphere has a dissociation energy of 515 kJ mol-1.
What is the longest wavelength of light that might bring about photodissociation of this molecule? Quote your answer in nm.
My work: convert E from mol to molecule
515kL/mol^-1= 515000J/mol^-1
(515000J/mol^-1)/(6.022*10^23mol^-1)
=8.3551976088 *10^-19J...(1)
wavelength =hc/E(joules)
=[(6.626*10^-34J.s)(2.998*10^8m*s^-1)]/(8.3551976088 *10^-19J)
=2.322825485*10^-07m
I typed in 2322825485 but it is incorrect...
m->nm= 10^9 ... what's wrong with my calculations?
Explanation / Answer
conversion is wrong.
2.32 X 10-7 M is equal to 230 nm
Please chack the conversion only.
Remaining calculation are seems correct.