Calculate the number of iron atoms in a piece of iron weighing `2.8 g` (Atomic mass of iron `= 56 u`).

Calculate the number of iron atoms in a piece of iron weighing 2.8g

What is the number of zinc atoms in a piece of zinc weighing 10 g ? (Atomic mass of Zn = 65 g )

Calculate number of gram atoms in 669.6 g of iron?

The haemoglobin contains 0:33% iron by weight. Its molecular mass is 67200. The number of iron atoms in one molecule of haemoglobin are (At. mass of Fe-56)

Find the total number of iron atom present in 224 amu iron.

Calculate the number of moles of iron in a sample containing 10^(22) atoms of iron.

A domain in ferromagnetic iron is in the form of a ube of side length 2mum then the number of iron atoms in the domain are ("Molecular mass of iron"= 55gmol^(-1) and "density"=7.92 g cm^(-3))

A domain in ferromagnetic iron is in the form of a ube of side length 2mum then the number of iron atoms in the domain are ("Molecular mass of iron"= 55gmol^(-1) and "density"=7.92 g cm^(-3))