Hemoglobin contains 0.33% iron by mass. The molecular mass of hemoglobin is approximately 67200.the number of iron atom (At mass of fe=5) present in one molecule of hemoglobin are:-
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100g haemoglobin = 0.33 g Iron. 67200g = 67200 x 0.33/ 100 = 224.44 g iron. Now, 56g iron = 6.022x10^23 atoms. So 224.44g = 224.44x 6.022x10^23/ 56 = 24.13x10^23 atoms.
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Explanation:
100g haemoglobin = 0.33 g Iron. 67200g = 67200 x 0.33/ 100 = 224.44 g iron. Now, 56g iron = 6.022x10^23 atoms
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