Question

A newly discovered metalloprotein, which contains four atoms of fe per molecule of protein, is found to be 0.600% fe by mass. calculate the molar mass of the metalloprotein.

Answer 1

Let the basis for the calculation of the molar mass of the mellaprotein be 1 mole. If x is the mass of 1 mole of the substance then,

Each of the mole of iron has a mass of 55.845 g/mol.

(4 mols of Fe)(55.845 g/ mol) = 223.38 grams

This mass is 0.60% of the total mass of the mellaprotein.

x = (223.38 grams) / (0.60/100) = 37230 g

Answer: 37230 grams