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Answer 1 · 2018-01-02T14:59:55

Please see the step process below...

Recall;

#n = N/(k)#

Where;

#n = "no of moles" = ?#

#N = "no of entity in atoms" = 12.046 xx 10^25#

#k = "Avogadros Constant" = 6.023 xx 10^23#

Therefore...

#n = (12.046 xx 10^25)/(6.023 xx 10^23)#

#n = 12.046/6.023 xx 10^25/10^23#

#n = 2 xx 10^(25 - 23)#

#n = 2 xx 10^2#

#n = 2 xx 10^2 or 200 mols#