Haemoglobin is a chromoprotein having four atoms of Fe in each molecule. Analysis showed 0.35% Fe. What is the molecular weight of haemoglobin?

Haemoglobin is a chromoprotein having four atoms of Fe in each molecul

1.	Haemoglobin is a chromoprotein having four atoms of Fe in each molecule. Analysis showed 0.35% Fe. What is the molecular weight of haemoglobin?
Answer» Solution :Atomic mass of iron = 56 amu Mass of iron in a molecule of HAEMOGLOBIN `56 xx 4 = 224` amu `:' 0.35` amu of Fe is present in 100 amu of haemoglobin `:' 224` amu of Fe will be present in `(100)/(0.35) xx 224` amu of haemoglobin, i.e., 64000 amu Thus, MOLECULAR mass of haemoglobin = 64000 amu