(Answered) 1athe laser in an audio cd player uses light with a

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1AThe laser in an audio CD player uses light with a wavelength of 7.80 3 102 nm. Calculate the frequency of this light.

B an FM radio station broadcasts at 99.5 MHz. Calculate the wavelength of the corresponding radio waves.

2. Calculate the wavelength of light emitted when each of the following transitions occur in the hydrogen atom. What type of electromagnetic radiation is emitted in each transition?
A. n =4 →m =3
B. n =5 →m = 4

3. Write Lewis structures that obey the octet rule for the following species. Assign the formal charge for each central atom. a. POCl3 b. SO42- c. ClO4- d. PO43-

4.114. Predict the molecular structure (including bond angles) for each of the following. a. PCl3 b. SCl2 c. SiF4

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