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Chemistry
Number of atoms in 558.5 g Fe (at. wt. 55.85) is:
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Q. Number of atoms in $558.5 g Fe \left(at. wt. 55.85\right)$ is:
Some Basic Concepts of Chemistry
A
Twice that in $60 g$ carbon
33%
B
$6.023 \times 10^{22}$
25%
C
Half in $8 g He$
8%
D
$558.5 \times6.023 \times 10^{23}$
35%
Solution:
Moles of $Fe=\frac{558.5}{55.85}=10$
Moles of $C=\frac{60}{12}=5$