KBr has fcc struture. The density of KBr is 2.75 g ` cm^(-3)` . Find the distance between ` K^(+) and Br^(-)` , (At mass of Br = 80.0)

A cork has a volume 25 cm^3 . The density of cork is 0.25 g cm^(-3) . Find the mass of the cork.

KBr has NaCl type sturcture . Its density is 2.75 g cm^(-3) . Edge length of unit cell will be: (Molar mass of KBr =119 g "mol"^(-1) )

KBr crystallises in a face-centred cubic crystal. The density of KBr crystal is 2.65g*cm^(-3) . If formula mass of KBr is 119g*mol^(-1) , then find the distance between K^(+)andBr^(-) in KBr crystal.

(i) What is ferromagnetic substance? (ii) KBr crystallises in face-centred cubic (fcc) crystals. The density and formula mass of KBr crystal are 2.65g*cm^(-3) and 119g*mol^(-1) respectively. Find the distance between K^(+)andBr^(-) ions in KBr crystal. or, (i) Which kind of defect in ionic crystal does not alter the density? (ii) An element X has atomic mass 60g*mol^(-1) and density 6.23g*cm^(-3) . The edge length of its unit cell is 400 pm. Identify the type of the unit cubic cell. Calculate the radius of X atom.

KBr crystallises in face-centered cubic (fcc) crystals. The density and formula mass of KBr crystal are 2.65 g cm^(-3) and 119 g mol^(-1) respectively. Find the distance between K^+ and Br^- ions in KBr crystal.

Density of KBr is 2.75 g//cm^(3) . The edge length of unit cell is 654 pm. Find the type of unit cell of KBr. (At mass of K = 39 and Br = 80).