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Haemoglobin contains 0.33% of Fe by weight.If one molecule of haemoglobin contains 2 Fe atoms , the molecular weight of haemoglobin will be




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Standard Atomic weight of Fe or Iron = 55.84 atomic mass units or Daltons

One molecule contains 2 Fe atoms => 111.68 amu or Daltons

Weight of Haemoglobin = 111.68 / (0.33/100)  amu
                                  = 33, 842 amu or Daltons
1 amu = 1.66 * 10^-27 kg

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