NaOH + X ----> NaCH3COO + H2O
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To make a first step you have to know the balanced form for neutralization formula: 
According to this, you can <span>calculate what you are being asked :</span>
Then we have :
Hope everything is clear, here is the exact answer you need :
According to this, you can <span>calculate what you are being asked :</span>
Then we have :
Hope everything is clear, here is the exact answer you need :
Answer : The change in energy of an atom is,
Solution : Given,
Wavelength of the photon =
Formula used :
where,
E = energy of an atom
h = Planck’s constant =
c = speed of light =
= wavelength of photon
Now put all the given values in the above formula, we get the energy of an atom.
Therefore, the change in energy of an atom is,