Question

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

Answer 1

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

Answer 2

Answer:

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