viii. How will you calculate the moles
of electrons passed and mass of
the substance produced during
electrolysis of a salt solution using
reaction stoichiometry.
Answers
Answer:
The amount of substance formed during electrolysis can be calculated with the help of Faraday's first law of electrolysis.
w=ZQ
where, w= mass of substance deposited on passing Q coulombs of electricity
Z= electrochemical equivalent
Q= amount of electricity passed
The number of moles of electrons can be calculated as
Q=nF
or, n = Q/F
where, n= number of moles of electrons
F= Faraday's constant
Q= amount of electricity passed
Explanation:
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Answer:
current (A=c/s)x time (s) gives us the amount of charge transferred,in coulombs, during the experiment.using the farady constant,we can then change the charge (c) to number of moles of electrons transferred,since 1 mole electrons=96,500 c, now we know the number of moles of electrons transferred.