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Schottky Defect

potassium iod...

Question

potassium iodide has cubic unit cell with edge length 705pm the density of ki is 3.12g/cm^3 how many k+ and I- ions are contained in the unit cell

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F e S_{2}

crystallises in a cubic unit cell with a cell edge of 0.54 nm. The density of pyrite is

5.02 g / c m^{3}

F e^{2 +}

S_{2}^{2 -}

ions are present in a single unit cell?
(S = 32, Fe =56u)

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]

F e S_{2}

), crystallizes in a cubic unit cell with a cell edge of

0.540 nm

. The density of pyrite is

5.02 {g/cm}^{3}

F e^{2 +}

S_{2}^{2 -}

ions are present in a single unit cell? (

S = 32 u, F e = 56 u

)

Q. Lithium iodide crystal has a face-centred cubic unit cell. If the edge length of the unit cell a 620 pm, determine the ionic radius of

I^{-}

F e S_{2}

), crystallizes in a cubic unit cell with a cell edge of

0.540 nm

. The density of pyrite is

5.02 {g/cm}^{3}

F e^{2 +}

S_{2}^{2 -}

ions are present in a single unit cell? (

S = 32 u, F e = 56 u

)

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