Question

What is formulae of(a+b)(a-b)
What is fomulae is density

Answer 1

Answer:

Density of Unit Cell

3

A

Z M d

a N d = Density (g/cm3

)

Z = number of atoms per unit cell a = Edge length in cm

Value of z for M = Molar mass in g/mol

simple cubic lattice = 1 NA

= Avogadro constant in per mol

bcc lattice = 2

ccp or fcc lattice = 4

Explanation:

Answer 2

Answer:

the formula of (a+b)(a-b)

Explanation:

is a square minus b square