Formula for electron accelerated across potential difference?

[juliab]

I got this homework and I don't know what formula to use on these problems:

An electron is accelerated across a potential difference of 54V. (a) Find the maximum velocity of the electron. (b) Calculate the deBroglie wavelength of the electron.

Please help!

 

[Astronuc]

1 electron accelerates to 1 eV of energy across a potential difference of 1 V = 1 J/C.

The energy obtained with 54 V would be all kinetic energy since the velocity/energy is non-relativisitic.

 

[juliab]

2 follow-up questions:

How to convert volts into electrovolts?
What's the mass of an electron?

 

[Curious3141]

2 follow-up questions:

How to convert volts into electrovolts?
What's the mass of an electron?

The question should be how to convert eV to joules? Both this question and the mass of the electron are easily answered with google. You can just type "eV in joules" into the google bar and get google calculator to tell you the answer. Then type "mass of electron".