The number of moles is "0.36".
According to the question,
Representative particles,
As we know,
→ Number of moles will be:
= [tex]\frac{2.17\times 10^{23}}{6.02\times 10^{23}}[/tex]
By solving the above, we get
= [tex]0.36 \ moles[/tex]
Thus the above answer is right.
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