Question

A current of 6 amperes is passed through a silver nitrate solution for 10 minutes when 4.028gm of silver is deposited. Calculate the electrochemical equivalent of silver.​

Answer 1

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A current of 6 amperes is passed through a silver nitrate solution for 10 minutes when 4.028gm of silver is deposited. Calculate the electrochemical equivalent of silver.

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❍We know, mass of metal deposited is represented by:

m = ZxIxt

where Z = Electrochemical equivalent (Equivalent weight of metal) - 96500

1 = Current passed

t =Total time taken.

From the question, m = 0.2013gm,

1 = 0.3 A,

t = 6mins = (6 60)s = 360s.

.. Z= m = (1 x t) → Electrochemical equivalent = m = (1 t)

= Electro. eqv. = 0.2013 = (0.6 x 360)

:: Electrochemical equivalent = 0.0011

So, the Electrochemical equivalent of silver is 0.0011

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Answer 2

m = ZxIxt

where Z = Electrochemical equivalent (Equivalent weight of metal) - 96500

1 = Current passed

t =Total time taken.

From the question, m = 0.2013gm,

1 = 0.3 A,

t = 6mins = (6 60)s = 360s.

.. Z= m = (1 x t) → Electrochemical equivalent = m = (1 t)

= Electro. eqv. = 0.2013 = (0.6 x 360)

:: Electrochemical equivalent = 0.0011

So, the Electrochemical equivalent of silver is 0.0011