Hi. can some one please explain me the solution for
this question. the correct answer is E. thanks.
Hi Dear Friend, here we have to use Faraday's law of electrolysis
w = [ A * c * t ] / [ Z * F ]
w = mass of metal liberated or deposited;
A = atomic mass of metal (Bismuth) = 208.9804 g/mol ;
c = current in amperes = 0.55 A;
t = time in seconds = 1.60 hours = 5760 seconds;
Z = charge on metal (BiO3-) = +5 ; Bismuth is in +5 oxidation state in this compound
F = Faraday's constant = 96485 C/mol of electrons
w = [ A * c * t ] / [ Z * F ]
w = [208.9804 g/mol x 0.55 A x 5760 sec] / [ 5 x 96485 C/mol of electrons]
w = 1.37233747671 g
w = 1.37 g -------------------------------------- YOUR ANSWER
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