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Mrac [35]
3 years ago
10

Calculate the change in energy of an atom that emits a photon of wavelength 2.21 meters. (Planck’s constant is 6.626 x 10-34 jou

le seconds, the speed of light is 2.998 x 108 m/s)
8.9886 x10-26 joules
4.8844 x 10-42 joules second
1.9864 x 10-25 joules
1.4643 x 10-33 joules /second
Chemistry
1 answer:
d1i1m1o1n [39]3 years ago
8 0
The answer is C. 1.9864 x 10-25 joules
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<u>Step 1: Define</u>

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  1. [DA] Set up:                                                                                                       \displaystyle 3.6 \ mol \ gas(\frac{22.4 \ L \ gas}{1 \ mol \ gas \ at \ STP})
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<u>Step 3: Check</u>

<em>Follow sig fig rules and round. We are given 2 sig figs.</em>

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