An element has hcp packing with a hexagonal unit cell. Its density is 21000 kg/m3 and the unit cell volume is 2.94 x 10^-29 m3. Calculate the molar mass (g/mol) of the element to three significant figures.Avogadro's No. (mol-1)6.022x10^23
An element has hcp packing with a hexagonal unit cell. Its density is 21000 kg/m3 and the unit cell volume is 2.94 x 10^-29 m3. Calculate the molar mass (g/mol) of the element to three significant figures.
Avogadro's No. (mol-1)
6.022x10^23
The density of HCP molecule can be shown as:
Where, d is density of cell
M is molar mass of element
A3 is volume of cell
NA is avogadro number
For HCP, Z = 4
a3 = 2.94 x 10-29 m3
NA = 6.02 x 1023
d = 2...
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Chemistry
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