Boron and Carbon FamilyHard

Question

Number of atoms in 558.5 gram Fe (at.wt. of Fe = 55.85 g mol-1) is

Options

A.twice that in 60 g carbon
B.6.023 × 1022
C.half that in 8g He
D.558.5 × 6.023 × 1023

Solution

Fe (no. of moles) = = 10 moles
C(no. of moles) = 60/12 = 5 moles.

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