# Chemistry

posted by .

Calculate the wavelength of a proton with energy 2.45 eV.

• Chemistry -

2.45 eV = 3.92E-19 joules.
Then E = hc/wavelength.
E = joules
h = Planck's constant
solve for wavelength in meters.

• Chemistry -

Can you write the result because i found 5.067e-7 and it's wrong.I try it many time in diffrent ways baut I finished with the some result!

• Chemistry -

Finally I found it.We have to do this :

wavelength=h/P
P^2=2*m*E
P=sqrt(2*m*E)

E = joule
h = Planck's constant
m = kg

## Similar Questions

1. ### Quantum Physics

An electron and a proton each have a thermal kinetic energy of 3kBT/2. Calculate the de Broglie wavelength of each particle at a temperature of 2170 K. (kB is Boltzmann's constant, 1.38×10-23 J/K. The mass of the electron is 9.11×10-31 …

The de Broglie wavelength of a proton in a particle accelerator is 3.60 x 10^-14 m. Determine the kinetic energy (in joules) of the proton.
3. ### Physics

I don't get this problem! Please show work. Thanks!! The de Broglie wavelength of a proton in a particle accelerator is 3.60 x 10^-14 m. Determine the kinetic energy (in joules) of the proton.
4. ### physics help!

I don't get this problem! Please show work. Thanks!! The de Broglie wavelength of a proton in a particle accelerator is 3.60 x 10^-14 m. Determine the kinetic energy (in joules) of the proton.
5. ### Chemistry

The ionization energy of hydrogen is 1313 kJ/mol. Covert this energy to: wavelength (nm) 1/wavelength, reciprocal wavelength (cm^-1) spectral region?
6. ### chemistry

Calculate the wavelength of a proton with energy 2.45eV. in meter plz
7. ### chemistry

Calculate the wavelength of a proton with energy 2.45 eV.
8. ### Science

Calculate the wavelength of a proton with energy 2.45 eV. Enter the numerical value in m
9. ### chemistry

A particle wavelength (λp) of a proton is 10-12m. What is the velocity of this proton [m/s]?
10. ### Chemistry

Calculate the wavelength of a proton with energy 2.45 eV.

More Similar Questions