16. The problems below may prioritize rote fundamentals, but facility with conversion between frequency, wavelength, and energy is one of the more useful tools you can take with you from a spectroscopy class. Determine the energy (in kJ/mol) of the following: (a) light having a frequency of 250 MHz (b) light having a wavelength of 810 nm (c) light having a wavenumber of 3000 cm³¹

17) Which one of the following has a Amax in its UV-visible spectrum with the longest wavelength? A) C) B) D)

(1) Why don't we observe the transition from na > ni for the hydrogen atom in the line spectrum? Be specific. 4000 300 3000 2500 2000 1500 1000 s00 300 350 400 450 800 550 700 750 800 Wavelength anometera) (2) An emission spectrum for a red laser pointer is shown above. Calculate the energy associated with the red laser pointer. (3) Draw an emission spectrum to represent light emitted by a blue laser. (qunao Ag

answer please

3. Regions of the electromagnetic (e/m) spectrum and corresponding molecular processes. (a) Sketch the e/m spectrum like depicted in figure below. For your sketch, use the following units (all together in one plot): wavelength, frequency, wavenumbers, and energy. (b) What are the molecular processes that can be studied by the different types of e/m radiation? Name three (3) processes. (A) Radio waves GOOD (B) (C) (D) Micro- Infrared Visible waves radiation light RESER ш Ultraviolet m X-rays Gamma-rays

range the following electron transitions 6 -> 2, 5 -> 2,  4 -> 2, and 3 -> 2: from highest energy to lowest

The two nuclei in the nitric oxide (NO) molecule are 0.1154 nm apart. The mass of the most common nitrogen atom is 2.326 * 10-26 kg, and the mass of the most common oxygen atom is 2.656 * 10-26 kg. Find the moment of inertia of the NO molecule.

337.1 nmnm (wavelength of a nitrogen laser) Express your answer using three significant figures.

4) For the following electronic transitions state if they are allowed or forbidden and if it corresponds to absorption or emission: a) 2p 3s b) 4s5s

Topic: Transmittance and absorbance, lambert-beer law Substance X has an absorbance maximum at 530 nm. 500 mg of this substance X are dissolved in one liter of water and the reading at 530 nm in a 0.10 cm thick cell, with the absorbance value equal to 0.215. They dissolve in water until make 250 mL a 150 mg quantity of a salt known to contain species X as the only absorbing species at 530 nm. The absorbance reading of the latter solution in a 1 cm thick cell is 0.750, what is the weight% of X in the salt?