1. Tardigrade
  2. Question
  3. Chemistry
  4. Iron crystallizes in body centered cubic system with edge length 2.86 AA . The density of iron is nearly 'X' g/ml. What is the value of 'X' here? Report your answer by rounding it upto nearest whole number.

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. Iron crystallizes in body centered cubic system with edge length $2.86 \AA$ . The density of iron is nearly 'X' g/ml. What is the value of 'X' here?
Report your answer by rounding it upto nearest whole number.

NTA AbhyasNTA Abhyas 2022

Solution:

Formula:
$d=\frac{Z \times M}{a^{3} \times N_{A}}=\frac{2 \times 56}{\left(2.86 \times 1 0^{- 8}\right) \times 6.02 \times 1 0^{23}}$
$d\approx7.92 \, g \, cm^{- 3}\sim eq8\text{ g cm}^{- 3}$
$d\simeq 8 \, g/ml$