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CHM homework 8

CHM homework 8 - Submitted Name Status Score Instructions...

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Submitted 4/11/08 11:59 PM Name Homework 8: Chapter 7 Status Completed Score 7.5 out of 10 points Instructions Question 1 0.5 out of 0.5 points Which of the following frequencies corresponds to light with the longest wavelength? Selected Answer: 4.12 x 10 5 s -1 Correct Answer: 4.12 x 10 5 s -1 Question 2 0.5 out of 0.5 points Light can have a wavelength of 5.50x 10 2 nm. The energy of a photon of light is Selected Answer: 3.61 x 10 -19 J Correct Answer: 3.61 x 10 -19 J Question 3 0.5 out of 0.5 points Which of the following is incorrect? Selected Answer: All of these are correct. Correct Answer: All of these are correct. Question 4 0 out of 0.5 points What is the wavelength of a photon of red light (in nm) whose frequency is 4.60x 10 14 Hz? Selected Answer: 153 x 10 6 nm Correct Answer: 652 nm Question 5 0.5 out of 0.5 points Consider the following portion of the energy level diagram for hydrogen:

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n=4 E 4 = –0.1361 × 10 –18 J n=3 E 3 = –0.2420 × 10 –18 J n= 2 E 2 = –0.5445 × 10 –18 J n=1 E 1 = –2.178 × 10 –18 J In the hydrogen spectrum, what is the wavelength of light associated with the n=2 to n=1 electron transition.
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