Question

The red colour blood is due to a compound called haemoglobin it contains 0.335% of iron four atoms of iron are present in one molecule of haemoglobin what is its molecular weight

Answer 1

According to the circumstances mentioned in the question;

The molecular weight of a hemoglobin molecule = 0.335% of four iron atoms.

Now the atomic weight of iron atom is approximately 55.845 grams

And the atomic weight of four iron atoms are 223.38 grams

By putting all the mathematical data;

The molecular weight of a hemoglobin molecule is = 0.335/100 × 223.38 = 0.748 grams (approximately) [answer]

Answer 2

Thus the molecular weight of the hemoglobin molecule is 0.748 g

Explanation:

We are given that:

Molecular weight of a hemoglobin molecule = 0.335% of four iron atoms.

To Find: Molecular weight = ?

Solution:

• The atomic weight of an iron atom = 55.845 g
• The atomic weight of four iron atoms = 223.38 g
• By putting the values in the data we can get that.
• Molecular weight of a hemoglobin molecule = 0.335 / 100 × 223.38 = 0.748 grams

Thus the molecular weight of the hemoglobin molecule is 0.748 g