What does a mole of iron weigh

As the atomic mass of iron is 55.847u

We say that it is the mass of one mole of iron.

By formula it can be find by

No. of mole=mass in g/molar mass

Mass in gram = no. of mole x molar mass

No. of mole = 1

Molar mass = 55.847g

Mass in gram = 1x55.847

= 55.847g of Fe