Calculate the molecular weight of the oxygen-carrier protein hemoglobin if
This protein is 0.335% Fe by weight and each protein molecule contains four
Iron atoms.

Question

Quizplus · Accepted Answer

The molecular weight of hemoglobin can be calculated by using the information that it is 0.335% Fe by weight and contains four iron atoms per molecule. The atomic weight of iron (Fe) is approximately 55.85 g/mol. Therefore, the total weight of iron per hemoglobin molecule is 4 * 55.85 g/mol = 223.4 g/mol. Since this iron constitutes 0.335% of the hemoglobin's total weight, the total molecular weight of hemoglobin can be calculated as 223.4 g/mol / 0.00335 = approximately 66,686 g/mol, which falls within the range of 50,000 to 100,000 grams per mole.

Calculate the Molecular Weight of the Oxygen-Carrier Protein Hemoglobin If