Iron has a body centred cubic unit cell with the cell dimension of 286.65 pm. Density of iron ·is 7.87 g `cm^(-3)` Use this information to calculate Avogadro's number. (Atomic mass of Fe= 56.0 u)

The well known mineral fluorite is chemically clacium fluoride. Its is known that in one unit cell of this mineral there are 4 Ca^(2+) ions and 8 F^- ions and that of Ca^(2+) ions are arranged in a fcc lattice. The F^- ions fill all the tetrahedral holes in the face centred cubic lattice of Ca^(2+) ions. the edge of hte unit cell is 5.46xx10^-8 cm in length. the density of the solid is 3.18 gcm^-3 . use this information to calculate the Avagadro's number. (Molar mass of CaF_2=70.08 g mol^-1 ).

Chromium crystallizes in a body centred cubic lattice whose density is 7.20g/cm^3 . The length of the edge of the unit cell is 288.4 pm. Calculate the Avogadro number (atomic mass of chromium=52).

An element has a body-centred cubic (bbc) structure with a cell edge of 288 pm. The density of the element is 7.2g/cm^3 . How many atoms are present in 208 g of the element?

Rubidium (atomic mass 85.5) crystallizes in a body centred cubic lattice with density of 1.51gcm^-3 . If the radius of rubidium atom is 248 pm, calculate Avagadro number.

Potassium iodide has cubic unit cell with cell edge of 705pm. The density of KI is 3.12 g cm^-3 . How many K^+ and I^- ions are contained in the unit cell?

Crystalline CsBr has a body centred cubic structure. Calculate the unit cell edge length if the density of CsBr crystal is 4.24 g cm^-3 . (atomic masses: cs=133, Br=80).

Tungsten has body centred cubic lattice. Each edge of the unit is 316 pm and density of the metal is 19.35"g cm"^(-3) . How many atoms are present in 50 g of the metal ?

An element crystallising in body centred cubic lattice has an edge length of 500 pm. If its density is 4gcm^-3 , the atomic mass of the element is

The elements crystallizes in a body centered cubic lattice and the edge of the unit cell is 0.351nm. The density is 0.533g//cm^(3) . What is the atomic mas?