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Topic: Series Limit (Read 1970 times)
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Coastie17
Regular Member
Posts: 13
Mole Snacks: +1/-0
Series Limit
«
on:
September 20, 2012, 08:35:28 PM »
Just need an answer check. Thank you.
Determine the energy of a photon associated with the series limit of the Humphreys (n=6) series.
v-tilde = 109680[(1/6
2
) + (1/∞
2
)]cm
-1
= 3046.7 cm
-1
(100 cm/1m) = 304670 m
-1
wavelength = 1/v-tilde = 1/304670 m
-1
= 3.028 x 10
-6
m
c/wavelength = v
(299792458 m/s)/3.28 x 10
-6
m = 9.14 x 10
13
s
-1
E = hv = (6.626 x 10
-34
J s)(9.14 x 1013 s
-1
) = 6.06 x 10
-20
J
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Borek
Mr. pH
Administrator
Deity Member
Posts: 27887
Mole Snacks: +1815/-412
Gender:
I am known to be occasionally wrong.
Re: Series Limit
«
Reply #1 on:
September 21, 2012, 04:21:15 AM »
Logic looks OK. 3.028x10
-6
m is wrong, but later you use a correct value of 3.28x10
-6
m, so it is probably just a typo.
Not that I checked numerical values.
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ChemBuddy
chemical calculators - stoichiometry, pH, concentration, buffer preparation,
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