0.05 cm thick coating of silver is deposited on a plate of 0.05 area. The number of silver atoms deposited on plate are _________ . (At mass Ag = 108, d = 7.9 g ) [2024]
(11) Volume of silver = thickness area of plate
= 0.05 cm 0.05
= 0.05 cm 0.05
= 25
Mass of silver deposited = density volume
= 7.9 25
= 197.5 g
Moles of silver deposited(n) =
=
= 1.8287 mol
Atoms of silver deposited = atoms
= 1.82876.022
= 11.01 atoms