To deposit 1 mole of copper from the copper sulphate solution 193000 coulomb charge is required.Find the time to deposit 0.1 mole copper from the copper sulphate solution. If a steady current of 5 amphere is passed through the solution
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3860 seconds are required to deposit 0.1 mole copper from the copper sulphate solution.
Explanation:
We are given:
Moles of electron = 1 mole
According to mole concept:
1 mole of an atom contains number of particles.
We know that:
Charge on 1 electron =
Charge on 1 mole of electrons =
1 mole of copper is deposited by = 193000 C
Thus 0.1 mole of copper is deposited by =
To calculate the time required, we use the equation:
where,
I = current passed = 5 A
q = total charge = 19300 C
t = time required = ?
Putting values in above equation, we get:
Hence, the amount of time needed for 0.1 mole of copper to deposit is 3860 seconds
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