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Sodium vapour lamps used for public lighting emitting 589 nm yellow light. Calculate the energy emitted by: an excited atom when it generates a photon at this wavelength and calculate the energy emitted by 0.1mol of excited Sodium atom at this wave length?
9 years ago

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DrBob222
You may want to spell chemistry right.
E = hc/wavelength
for one atom.
That x 6.02E22 atoms for 0.1 mol.
9 years ago

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