X-r ct Question 4 0/3 pts ncorrect What is the energy of 1 mol of 725...
4.65 x 1014 s-1 D Question 2 2 pts Calculate the energy of a photon of blue light that has a wavelength of 432 nm. 0 4.60 x 1019 j 8.59 x 10-17 J 8.59 x 10 23 j 0 1.53 x 10-27 J D 1.29 x 106 J Question 3 2 pts
Question 9 4 pts After excitation, of helium gas there are five distinct, visible emission lines. One of these lines corresponds to an energy transition at a wavelength of 686 nm. Using AE - hc/, where his Planck's constant -6.63 x 10 % J-s and c is the speed of light = 3.00 x 10 m/s. What is the change in energy associated with this transition? 298 x 1015) 298 x 102) 289x 10") 2.90x105 2.90 x 10") Question 10
Question 18 0/2 pts Ch 31:23 What is the energy (in units of eV) of a UV photon with a wavelength of 30 nm (30 x 10-ºm). Hint: Use Plank's equation with h = 4.13 x 10-15 eV s and c = 3 x 108 m/s.
.Eckstt Chemistry 111- Test 1-50 points Chapters 1, 2 and 3 NAME Planck's Constant, h 6.63 x 10-341 Rydburg Constant, Rh 2.18 x 10-181 Avogadro's Number, Na 6.022 x 1023 Speed of Light, c= 3.00 x 108 m/s MULTIPLE CHOICE, Choose the one alternative that best completes the statement or answers the Circle your numerical final answer. Provide work and explanation for each question. question. 1) What is a unifying principle that explains a body of experimental observations? A) Phenomena...