Hemoglobin contains 0.34% iron. Calculate the molecular weight of hemoglobin.

Hemoglobin, a blood protein that binds oxygen and participates in the breathing process, contains 0.34% of a chemical such as iron. In order to calculate the molecular weight of hemoglobin, we first need to calculate the molar mass of iron itself. For this, we need to turn to the periodic system of DI Mendeleev. Iron has a serial number 56, hence its molecular weight will be 56. M (Fe) = 56.

Next, we compose a solution:

Mmin = M / 34% * 100%

Mmin = 56: 0.34% 100% = 164.71 grams.

Answer: Hemoglobin has a molecular weight of 164.71 grams.