1. Tardigrade
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  3. Chemistry
  4. The density of KBr is 2.75gcm- 3 . The edge length of unit cell is 654pm , then structure of KBr is :( Mw of KBr=119gmol- 1 )

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Q. The density of $KBr$ is $2.75gcm^{- 3}$ . The edge length of unit cell is $654pm$ , then structure of $KBr$ is :( $M_{w}$ of $KBr=119gmol^{- 1}$ )

NTA AbhyasNTA Abhyas 2022

Solution:

Density $=\frac{Z \times M_{W}}{V \times N_{A}}$
$Z=4$