CBSE Class 12 Chemistry 2018 Solved Paper

Question : 12 of 26

Marks: +1, -0

An element '

X

' (At. mass

=40 \mathrm{g} \mathrm{mol}^{-1}

) having f.c.c. structure, has unit cell edge length of

400 \pm

. Calculate the density of '

X

' and the number of unit cells in

4 \mathrm{g} \text{of}' X' . (N_A = 6.022 \times 10^{23} \mathrm{mol}^{-1})

Go to Question:

Prev Question

Next Question