Haemoglobin contain of iron by weight. The molecular weight of haemoglobin is approximately 67200.
The number of iron atoms (At.wt. of ) present in one modecule of hemoglobin is
6
1
4
2
Given,
% by weight of Fe in a molecule of Haemoglobin = 0.33%
Thus, weight of Fe in a molecule of Haemoglobin =
Hence, number of Fe atoms in one molecule of Haemoglobin is approximately 4