An X-ray photon with a wavelength of 0.950 nmnm strikes a surface. The emitted electron has a kinetic energy of 940 eVeV. What is the binding energy of the electron in kJ/molkJ/mol? [Note that KEKE = 12mv212mv2 and 1 electron volt (eVeV) = 1.602×10−19J1.602×10−19J.] Express your answer using three significant figures.

13) What is the energy of the radiation emitted when an electron in a hydrogen drops from an energy level of nhigh = 6 to nlow = 4.Enter you answer in the form 1.00E2.

Calculate the frequency of a photon with energy of 5.38 x 1017 J. Select the correct answer: Oa. 8.12 x 104 Hz b. 8.12 x 1016 THz Oc. 3.56 x 10-62 THz Od. 8.12 x 104 THz Oe. 3.69 x 10-9 Hz

‘Burning strontium salts such as Sr(NO3)2 produces red photons. Calculate the energy (in joules per mole) of a 670nm emission.’—I thought this was pretty straightforward but apparently nothing I have come up with was correct.

Calculate the wavelength (µm) of infrared light that has a frequency of 1.219 x 1012 s-1.

What is the total energy associated with a pulse of 5.00 × 1017 photons if each photon possessed a frequency of 4.79x1014Hz?

3, Determine the Rydberg constant from the data. Since for n1 = 2: tad**) Equation 1 릇=-R-G)- Equation 2 4 which is of the form y - mx+ b That is, Equation 2 is of the form of a straight line, hence the Rydberg constant is the negative of the slope. Plot y 1/0 vs. x 1/ni on the graph paper provided, then determine the slope m =-R," Be sure to label the axes of the graph. As a check, compare this value of RH with the y-intercept, which should equal R,(4. To make it easy, set up a table (next page) for the data. Use meters for wavelength; the units of R, will be meter". Show your calculations in the space below:

A local FM radio station broadcasts at an energy of 6.11 x 107 -29 kJ/photon. ( 1 MHz = 106 s-¹) Calculate the frequency at which it is broadcasting. Frequency = | MHz

Calculate the kinetic energy of an electron ejected from the surface of a sample of Rubidium (binding energy = 2.26 eV (where 1 eV = 1.60218 x 10-19 J) when the metal is subjected to photons having a wavelength of 325 nm.