Find the molar mass of an element that crystallizes forming unit cell structure having edge length $4 imes 10^{-8} \mathrm{~cm}$ and containing 4 particles. ( $Q=19.7 \mathrm{~g} \mathrm{~cm}^{-3}$ )

Question

Find the molar mass of an element that crystallizes forming unit cell structure having edge length $4 	imes 10^{-8} \mathrm{~cm}$ and containing 4 particles. ( $Q=19.7 \mathrm{~g} \mathrm{~cm}^{-3}$ )

Aicharya · Accepted Answer

$\mathrm{d}=\frac{\mathrm{Z} 	imes \mathrm{M}}{\mathrm{V} 	imes \mathrm{N}_{\mathrm{A}}}$ $19.7=\frac{4 	imes M}{\left(4 	imes 10^{-8}ight)^3 	imes 6.02 	imes 10^{23}}$ $\mathrm{M}=189.75 \mathrm{~g} / \mathrm{mol}$

Find the molar mass of an element that crystallizes forming unit cell structure having edge length $4 \times…

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