What is the ECE of Ag? (Atomic weight =108)

The molecular weight of hydrogen peroxide is 34.What is the unit of the molecular weight ?

The electronic configuration of an atom is 1s^2 2s^2 2p^6 3s^2 . Determine its atomic number. How many neutrons are present in the nucleus if its atomic weight is 24.

Salts of A (atomic weight 7), B (atomic weight 27) and C (atomic weight 48) were electrolysed under identical condition using the same quantity of electricity. It was found that when 2.1 g of A was deposited, the eight of B and C deposited were 2.7 and 7.2 g. The valencies of A,B and C are respectively :

What is the arrangement of atoms in graphite ?

Find the number of atoms of ‘Ag’ deposited at the cathode from AgNO_3 solution when 96.5C of electricity is passed through its solution. (Atomic mass of Ag = 108)

What is effective atomic number?

What is the weight of oxygen that is required for the complete combustion of 2.8 kg of ethylene :