Hemoglobin contains 0.34% | Mole Concept

JEE MAIN 2022

26-07-2022 S2

Question

Hemoglobin contains 0.34% of iron by mass. The number of Fe atoms in 3.3 g of hemoglobin is :
(Given : Atomic mass of Fe is $56 \mathrm{u}, \mathrm{N}_{\mathrm{A}}$ in $6.022 \times 10^{23} \mathrm{~mol}^{-1}$ )

Select the correct option:

$1.21 \times 10^5$

$12.0 \times 10^{11}$

$1.21 \times 10^{20}$

$3.4 \times 10^{22}$

✓ Correct! Well done.

✗ Incorrect. Try again or view the solution.

Solution

Question Tags

JEE Main

Chemistry

Easy

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