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  • Haemoglobin contain of iron by weight. The molecular weight of haemoglobin is approximately 67200. The number of iron atoms (At.wt. of

Haemoglobin contain 0.33\% of iron by weight. The molecular weight of haemoglobin is approximately 67200.

The number of iron atoms (At.wt. of Fe=56) present in one modecule of hemoglobin is

Option: 1

6


Option: 2

1


Option: 3

4


Option: 4

2


Answers (1)

best_answer

Given,

% by weight of Fe in a molecule of Haemoglobin = 0.33%

Thus, weight of Fe in a molecule of Haemoglobin = \frac{0.33}{100} \times 67200 = 221.76 \ g

Hence, number of Fe atoms in one molecule of Haemoglobin is approximately 4

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