What is the energy per mole of photons of light with a
wavelength of 812.4 nm? a.) 2.45 x 10^-19 KJ/mol b.) 1.47 x 10^2
KJ/mol c.)4.89 x 10^14 KJ/mol d.) 2.22 x 10^35 KJ/mol e.) 3.69
x10^14 KJ/mol (please show work)
Calculate the wavelength ?λ and the frequency ?f of the photons
that have an energy of ?photon=2.32×10−18 J.Ephoton=2.32×10−18 J.
Use ?=3.00×108 m/sc=3.00×108 m/s for the speed of light in a
vacuum.
?=λ=
mm
?=f=
HzHz
Calculate the wavelength and the frequency of the photons that
have an energy of ?photon=901 MeV.Ephoton=901 MeV.
?=λ=
mm
?=f=
HzHz
Calculate the wavelength and the frequency of the photons that
have an energy of ?photon=5.61 keV.Ephoton=5.61 keV.
?=λ=
mm
?=f=
HzHz
Calculate the wavelength...
What is the energy, in kJ/mole, associated with photons having
the following wavelength
A. 280nm
B. 400nm
C. 750nm
D. 4000nm
What is the significane of each of these wavelengths
One photon of a certain light has an energy of 3.8e-19J.Calculate the wavelength of the light. 195.511e-9 m521.053e-9 m594.752e-9 m260.699e-9 m900.776e-9 mThe refractive index of a certain medium is 1.21.Calculate the speed of light in the medium. 4.411e8 m ⁄ s4.693e8 m ⁄ s1.955e8 m ⁄ s2.479e8 m ⁄ s3.985e8 m ⁄ s
Be sure to answer all parts.
Calculate the wavelength (in nm) of light with energy 1.89
×10−20 J per photon.
..............nm
For light of wavelength 460 nm, calculate the number of photons per
joule.
.........× 10^...... ( photons/J Enter your answer in
scientific notation.)
Determine the binding energy (in eV) of a metal if the kinetic
energy possessed by an ejected electron (using one of the photons
with wavelength 460 nm) is 2.58 ×10−19 J.
.............. eV
6.a) In terms of wavelength, frequency and energy compare the
two photons with wavelengths of 900 nm and 780 nm. b) What are the
emission spectra of an element? c) How are the emission spectra of
an element produced? d) How did Bohr (quantum theory) explain the
emission (line) spectra of hydrogen?
Determine the energy of 1.90 mol of photons for each of the
following kinds of light. (Assume three significant figures.)
infrared radiation (1410 nm )
visible light (520 nm )
ultraviolet radiation (150 nm )
For all of them "E = ____ kJ"
Determine the energy of 1.40 mol of photons for each of the
following kinds of light. (Assume three significant figures.)
A. infrared radiation (1430 nm )
B. ultraviolet radiation (135 nm )