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April 25, 2015

Homework Help: Chemistry

Posted by Jude on Thursday, May 5, 2011 at 9:45pm.

How much energy in KJ is release to form one mole of 123Sb from protons and neutrons if the atom has a mass of 122.90422 amu? Please remember to include the mass of electrons in calculations.
Havent been taught this yet so a step by step walkthrough would help me immensely.Thanks in advance

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