A Unit Cell of NaCl has 4 Formula Units. Its Edge Length is 0.50 nm. Calculate the Density if Molar Mass of NaCl = 58.5 g/mol | Bzziii

admin October 30, 2021

A unit cell of NaCl has 4 formula units. Its edge length is 0.50 nm. Calculate the density if molar mass of NaCl = 58.5 g/mol.

(a) 1 g/`"cm"^{3}`

(b) 2 g/`"cm"^{3}`

(d) 4 g/`"cm"^{3}`

Explanation:

We Know that,

Density = `\frac{("Z"\times "m")}{("a"^{3}\times "Na")}`

Density = `\frac{(4\times 58.8)}{(0.5\times 10^{-7})\times 6.023 \times 10^{23}}`

Density = 3 g/`"cm"^{3}`

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