Unformatted text preview: 23 atoms in 1 mole. Now we need to convert atoms of C to electrons. We need to consult the periodic table again in order to observe the atomic number of C. It is 6, so this means that C has 6 protons and also 6 electrons. However, this particular sample of C has a 2 charge which means that each atom has two additional electrons giving each atom a total of 8 electrons. Since the question requests for the answer to be given in moles, we need to convert the electrons back into moles by using Avogadro’s number. This number merely means that there are 6 x 10 23 items in a mole of that item. Here, the item is electrons. This gives us our final answer, answer (d). 12 g C  1 mol C  6 x 10 23 atoms of C  8 electrons  1 mol electrons = 8 mol electrons  12 g C  1 mol C  1 atom of C  6 x 10 23 atoms...
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This document was uploaded on 11/04/2011 for the course CHEM 105 at BYU.
 Fall '07
 Macedone
 Electron, Mole

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