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QUESTION
Q52) Number of atoms in 558.5g Fe ... [ AIEEE 2002]
at. wt. of Fe=55.85 g/mol
a) twice that in 60g carbon
b) 6.023×10
22
c) half that in 8g He
d) 558.5×6.023×10
23
SOLUTION
558.5g Fe=10 moles of Fe
60 g carbon=5 moles of C [ at. wt of C=2g/mol]Answer: (a)