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If coulombs of electricity is passed through a metal cup dipped in silver(I) salt solution, in order to plate it with silver. Then the amount of silver deposited on its surface is
(Given: the molar mass of coulombs)
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(Given: the molar mass of coulombs)
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The correct answer is:
The chemical equation for deposition of silver from the salt solution is
Clearly, for deposition of one mole of silver one-mole electrons are required.
- Charge on one mole of the electron is equal to one Faraday or Coulombs.
- The mass of one mole of silver is equal to its molar mass, i.e., .
Thus, we can say that
coulomb charge can deposit of silver.
Therefore, coulomb will deposit of silver.
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