Question 9
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Question 9
I've attempted this question many times and I finally got it correct after using 1.09e7 for the Rydberg constant, but in my notes, the Rydberg constant was 1.09e-7. I was just wondering if there are certain situations that makes the constants different? Or maybe I just wrote it down wrong?
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Re: Question 9
I think you probably wrote it down wrong! I have 1.09 x 10^7 written down in my notes
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Re: Question 9
Rydberg's constant is one that relates to the electromagnetic spectra of an atom. The Rydberg constant is either 3.28984 x 10^15 Hz or 1.09 x 10^-7 m^-1. You use different constants whether you are equating to frequency or if you are relating to the reciprocal of the wavelength. Make sure you are using the right constant in the right situations!
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Re: Question 9
If you want to make sure you have the correct Rydberg constant, you can use the one given on the constants and equations sheet, 3.289*10^15 Hz, and solve for the frequency first, then divide the frequency by the speed of light to get wavelength!
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Re: Question 9
If you are using the equation that solves for wavelength, the Rydberg constant is 1.0974e7 n to -7! You may have written it down incorrectly. There are also the Rydberg constants that solve for energy and frequency instead of wavelength.
Re: Question 9
For this question, I would use rydbergs equation to find the frequency and then plug that into another equation to give you the wavelength or energy.
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Re: Question 9
I think you might've slightly messed up the unit's exponents with the actual exponents.
The correct Rydberg constant is 1.09 x 10^7, and the units are in m^-1.
The correct Rydberg constant is 1.09 x 10^7, and the units are in m^-1.
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