What is the quantity of electricity (in coulombs) required to deposit all the silver from 250 ml of 1 M AgNO₃ solution ?  (Ag = 108) 

Number of moles of Ag = 0.25$\times$1 = 0.25

number of equivalents of Ag = 0.25

96500 C deposits 1 eq of Ag

                   ?          =    0.25 eq of Ag

=96500$\times$0.25=24125 C