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Chemisorption

density of KB...

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density of KBr is 2.75g/cm3 . the edge length of unit cell is 654pm . find the type of unit cell of KBr .

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K B r

crystallises in

N a C l

type of crystal lattice and its density is

2.75 g / c m^{3}

. Number of unit cells of

K B r

present in a 1.00

m m^{3}

K B r

Q. The density of potassium bromide crystal is

2.75

/ c m^{3}

and the length of an edge of the unit cell is

654

pm. The unit cell of

K B r

is one of the three types of cubic unit cell. How many of formula units of

K B r

are there in a unit cell?

[K B r = 119]

Q. The density of

K B r

11.9 {g cm}^{- 3}

. The edge length of unit cell is

400 pm

. This shows that

K B r

has:
(Given: Molecular mass of

K B r = 119 u

)

Q. The density of potassium bromide crystal is

2.75 g c m^{- 3}

and the length of an edge of a unit cell is

654 p m

. The unit cell of

K B r

is one of three types of cubic unit cells. How many formula units of

K B r

are there in a unit cell? Does the unit cell have a

N a C l

C s C l

Q. The density of KBr is

2.75

^{- 3}

. The length of an edge of the unit cell is

654

pm. To which type of cubic crystal does KBr belong?

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