How many electrons will flow when a current of 5 amperes is passed through a solution for 200 seconds ?

Explanation

Quantity of electricity passed in coulombs, `Q = I xx t` where I is the current in amperes and is the time in seconds.
`:.Q=5"amp" xx 200s=1000C[ :. "amp" xx "sec"= "Coulombs", C]`
Charge on one electron `=1.602 xx 10^(-19)C`
`:.` Number of electrons flowing through the solution
`=(1000C)/( 1.602 xx 10^(-19)C) = 6.242 xx 10^(21)`