Answer to Question #97067 in General Chemistry for Regina

Question

If 10 grams of iron contain 'y' atoms, how many grams of aluminum will contain 'y' atoms.

Answer 1

Molecular weight of iron 55.84 gm

10 gm contain 0.179 mol of iron

same number of moles contain same number of atom

irrespective of identity of atom

0.179 mol of Aluminium will contain same number of atom

Molecular weight of aluminium = 26.98 gm

Thus 0.179 mol will be equal to 4.83 grams

Thus 4.83 grams of aluminium will contain same number of atoms