Homework question 1.27 [ENDORSED]
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Re: Homework question 1.27
Once you have the number of electrons emitted in 2 seconds, you can just divide that by Avogadro's constant to get the moles of electrons emitted in 2 seconds.
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Re: Homework question 1.27 [ENDORSED]
And to find the number of photons, use the equation E=hc/wavelength. then take the total Energy (64J) and divide that by the Energy you just found (which is J/photon --> 473x10^-19) to get the number of photons which is 1.35x10^20 photons.
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Re: Homework question 1.27
Just divide the number you found that's emitted in two seconds by Avogadro's number (6.02*10^23) since there are that many atoms in just a single mole. Hope this helped! :)
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