### E=hv

Posted:

**Sun Oct 13, 2019 7:50 pm**Can E=hv be used to calculate the energy required to remove an electron?

Created by Dr. Laurence Lavelle

https://lavelle.chem.ucla.edu/forum/

https://lavelle.chem.ucla.edu/forum/viewtopic.php?f=15&t=47326

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Posted: **Sun Oct 13, 2019 7:50 pm**

Can E=hv be used to calculate the energy required to remove an electron?

Posted: **Sun Oct 13, 2019 7:53 pm**

Yes, you can, but it also depends on the context/given information of the problem.

Posted: **Sun Oct 13, 2019 8:08 pm**

yes it can be used to calculate the energy necessary to remove an electron, but be sure to read the problem closely

Posted: **Sun Oct 13, 2019 9:00 pm**

The formula can be used to find the energy of light of a given frequency.

Posted: **Sun Oct 13, 2019 9:58 pm**

The equation spelled out is "energy = planck's constant x wavelenght", and since you want to find energy, this equation would be perfect, that is, if you are using it in the correct context.

Posted: **Sun Oct 13, 2019 10:11 pm**

In this case, the equation says that the energy of a particle of light is proportional to its frequency by a constant factor. Therefore, this equation can be used to calculate the energy required to remove an electron.