Saturday
March 28, 2015

Homework Help: Chemistry

Posted by Anonymous on Thursday, April 1, 2010 at 8:11pm.

It takes 254 kJ/mol to eject electrons from a certain metal surface. What is the longest wavelength of
light (nm) that can be used to eject electrons from the surface of this metal via the photoelectric
effect?
I'd appreciate it if someone could explain how to do this because I have a test tomorrow and don't know where to start. Thanks!

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