Answer to Question #70369 in Chemistry for Trinity

Question #70369
How much energy is emitted by 39.1 mg of sodium atoms emitting light at this wavelength?
Answer in units of J.
1
Expert's answer
2017-10-03T15:01:07-0400
M (Na) 23 g/mol
39.1 mg Na x (1 g / 1000 mg) x (1 mole Na / 23.0 g Na) x (6.023 x 10 23 atoms / mole) x (3.4272 x 10 -19 J /
atom) = 351 J

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