Physics, asked by sang1896, 1 year ago

Barium of body centered cubic unit cell has a edge length 805pm calculate its density

Answers

Answered by psam26

1

Answer:

we have formula..

d = z M/ a^3 * Na

d= density of unit cell

z= no. of effective atoms

M= molar mass

a= edge length

Na= Avagadros no.= 6.022* 10^23

here bcc has z= 2

Barium has molar mass= 138 g/ mol

now u can calculate..

ans is aprox. 0.87g/cm^3

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