Define Avogadro constant `(N_(A))`.

Define avogadro's law.

Define dielectric constant.

The ionization energy of hydrogen atom in the ground state is 1312 kJ "mol"^(-1) . Calculate the wavelength of radiation emitted when the electron in hydrogen atom makes a transition from n = 2 state to n = 1 state (Planck’s constant, h = 6.626 xx 10^(-34) Js , velocity of light, c = 3 xx 10^8 m s^(-1) , Avogadro’s constant, N_A = 6.0237 xx 10^23 "mol"^(-1) ).

Define molal depression constant or cryoscopic constant.

The unit cell of an element of atomic mass 108 u and density 10.5 g cm^(-3) is cube with edge length 409 pm. Find the type of unit cell of the crystal. (Given : Avogadro's constant = 6.023 xx 10^(23) mol)

The Avogadro number is

Define molal elevation constant or ebullioscopic constant.

Define current gain at a constant V_("CE") and V_("BE") .

A metal has a fcc lattice. The edge length of the unit cell is 404 pm. The density of the metal is 2.72 g cm^(-3) . The molar mass of the metal is (N_A,"Avogadro's constant"=6.02 X10^23 mol^(-1))