Question

Hemoglobin is the protein that transports oxygen in mammals. Hemoglobin is 0.347% by mass, and each hemoglobin molecule contains four iron atoms. Calculate the molar mass of hemoglobin.

Answer 1

Answer:

Molar mass of hemoglobin is 64380.4 g/mol

Explanation:

Percentage of Fe calculated from the equation

%Fe   =  4×molar mass of Fe/molar mass of hemoglobin.(4 because hemoglobin contain 4 Fe atoms)

Molar mass of hemoglobin is =4×molar mass of Fe / % Fe

                                                 =4×55.85/.00347

                                                 =64380.4 g/mol.

Answer 2

The molar mass of hemoglobin is 64380.4 g/mol.

Calculation of the molar mass:

Since Hemoglobin is 0.347% by mass,

here we have to determine the percentage of Fe

%Fe   =  4×molar mass of Fe/molar mass of hemoglobin

So,

The molar mass of hemoglobin is

=4×molar mass of Fe / % Fe

=4×55.85/.00347

=64380.4 g/mol.

hence, The molar mass of hemoglobin is 64380.4 g/mol.

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