Question 119477
Use Faraday's equation for electrolysis is {{{ m = k*I*t}}}

That is:
 
{{{mass_ in_ grams = electrochemical_ equivalent * current * time}}}

or

{{{m = k *I * t}}}

where

 {{{m= mass}}}  in {{{grams}}}


{{{k= electrochemical_ equivalent }}}……..atom weight divided by valence times 96,500; {{{k}}} for silver is {{{107.88 /96500}}} or = {{{0.001118}}}


{{{I= current}}}……………….. in amps


{{{t= time}}}…………………….. in seconds


given:


{{{k = 0.001118}}}


{{{I= 1 * 10^-1 *A }}}……………….. in amps


{{{t= 1 h 20 min }}}……………………..should be in seconds, and that will be 
{{{3600s +1200s = 4800s}}}


So, we will have:


{{{m = k *I * t}}}


{{{m = 0.001118 *10^-1  * 4800 }}}


{{{m = 0.001118 * 1/10  * 4800 }}}


{{{m = 0.001118 * .1  * 4800 }}}


{{{m = 0.53664g}}}