Haemoglobin contains 0.34% of iron by mass. The number of Fe atoms in 3.3 g of…
Chemistry · JEE Main · NTA Exams — Some Basic Concepts in Chemistry
Haemoglobin contains 0.34% of iron by mass. The number of Fe atoms in 3.3 g of haemoglobin is : (Given : Atomic mass of Fe is 56 u, NA is 6.022 × 1023 mol–1) (JEE Main 2022)
- 1.21 × 105.
- 12.0 × 1016
- 1.21 × 1020
- 3.4 × 1022
Answer
(C) 1.21 × 10 20
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