Question

The red colour of blood is due to a
called “haemoglobin”. It contains 0.335 7. of icon,
compound
Four atoms of iron are present in one molecule of
haemoglobin. what it its molecular weight
of haemoglobin ​

Answer 1

Answer:

223.2

Explanation:

Atomic weight of iron = 55.8 units

Weight of four atoms of iron = ( 55.8×4) = 223.2

Therefore, molecular weight of haemoglobin = 223.2 units

Answer 2

Answer:

66686.57 g/mol.

Explanation:

Since, 4 atoms of iron are present in one molecule of the haemoglobin. Hence, the total mass of iron will be 55.85*4 = 223.4gram.

Let the molecular weight of haemoglobin is x. So, for the total mass the weight of iron will be 223.4/x which will be equal to the 0.335 % of the iron. Now, equating both of them we will get 223.4/x=0.335/100 which on solving we will get x as 66686.57 gram / mol which is molecular weight of haemoglobin.