Question

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11. Calculate the number of moles in 100 g of iron and
Atomic masses: Fe=56 u, O=16u, H=1 u​

Answer 1

1 mole of Fe = 56 g ( Molar mass)

let X moles = 100 g

= X = 100/56 g = 1.785 g

Hope it helps you..

Always use unitary method to solve these problems.......