Lithium borohydride crystallizes in an orthorhombic system with 4 molecule per unit cell

CHEMISTRY · Subjective · ISC · Chemistry · Some Basic Concepts of Chemistry · Dimensional analysis

Problem

Lithium borohydride crystallizes in an orthorhombic system with 4 molecule per unit cell. The unit cell dimensions are

a = 6.8 \text{ \AA}

,

b = 4.4 \text{ \AA}

and

c = 7.2 \text{ \AA}

. If the molar mass is 21.76, calculate the density of crystal.

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