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General Chemistry

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Moderate

Calculate the Energy of Light using Frequency

CHEM-EBXYQL

Neon signs are so-called because of the excited neon gas inside the tubes used to produce light.

Calculate the energy of a photon of orange light emitted by a neon sign with a frequency of $4.89\times { 10 }^{ 14 }$ Hz.

$h=6.626\times { 10 }^{ -34 } J\cdot s\\\ c=3.00\times { 10 }^{ 8 }\cfrac { m }{ s }$

A

$1.47\times { 10 }^{ 23 }$ J

B

$3.24\times { 10 }^{ -19 }$ J

C

$6.44\times { 10 }^{ -21 }$ J

D

$8.45\times { 10 }^{ -8 }$ J