How long will it take to produce 2.415 g of Ag metal from its salt solution by passing a current of 3A ? How many miles of electrons are required ? Molar mass of Ag is 107.9 g/ mol.
Mass of substance formed = I.t. (mole ratio ) . M/ 96500
Reaction is - Ag+ ==> Ag + 1e So, mole ratio = no. of moles of substance formed / no. of electrons emmited = 1
Substituing the values... 2.415 = 3 x t x 1 x 107.9 / 96500
So, t = 0.0081 seconds.
now, q = It = ne
3 x 0.0081 = n x 1.6 x 10-19
n = 0.0152 x 1019 electrons i.e 1.52 x 1019 milli electrons
Reaction is - Ag+ ==> Ag + 1e So, mole ratio = no. of moles of substance formed / no. of electrons emmited = 1
Substituing the values... 2.415 = 3 x t x 1 x 107.9 / 96500
So, t = 0.0081 seconds.
now, q = It = ne
3 x 0.0081 = n x 1.6 x 10-19
n = 0.0152 x 1019 electrons i.e 1.52 x 1019 milli electrons
