Home
Class 12
CHEMISTRY
State and explain Faraday's law of elect...

State and explain Faraday's law of electrolysis. When a current of 1.5 amperes strength is passed through a solution of a salt of a metal ( atomic mass = 112 ) for 15 min , 0.783 g of the metal is deposited. Find out the valency of the metal.

Text Solution

Verified by Experts

Faraday.s law of electrolysis `:`
Given that, Current ( C ) = 1.5 A
Time ( t ) = 15 min = 900 s
Atomic mass of the metal = 112
Amount of electricity passed `= C xx t = 1.5 xx 900`
`= 1350 ` Coulombs
`:.` 1350 Coulombs of electricity deposit 0.783 g of metal
`:.` 96500 Coulombs of electricity deposit
`= ( 0.783)/( 1350) xx 96500 = 55.97 g`
Valency `= ( " Atomic mass")/( "Equivalent mass") = ( 112)/( 55.97) = 2.001 =2`
Promotional Banner

Topper's Solved these Questions

  • ELECTROCHEMISTRY

    ARIHANT PUBLICATION|Exercise QUESTIONS FOR ASSESSMENT ( PART 1 CONDUCTORS , ELECTROLYTES AND THEIR DISSOCIATION, ELECTROLYSIS , ITS LAWS AND APPLICATIONS) ( MULTIPLE CHOICE TYPE QUESTIONS) |3 Videos

  • ELECTROCHEMISTRY

    ARIHANT PUBLICATION|Exercise QUESTIONS FOR ASSESSMENT ( PART 1 )( VERY SHORT ANSWER TYPES QUESTIONS) |7 Videos

  • ELECTROCHEMISTRY

    ARIHANT PUBLICATION|Exercise QUESTIONS FOR PRACTICE (PART 1) ( CONDUCTOR ELECTROLYTES AND THEIR DISSOCIATION, ELECTROLYSIS, ITS LAW AND APPLICATIONS)( SHORT ANSWER TYPE II QUESTIONS) |5 Videos

  • D-BLOCK ELEMENTS

    ARIHANT PUBLICATION|Exercise Chapter practice (Long answer type questions)|2 Videos

  • ELEMENTS : NITROGEN FAMILY

    ARIHANT PUBLICATION|Exercise CHAPTER PRACTICE ( Long Answer Type Questions ) |11 Videos

Similar Questions

Explore conceptually related problems

When a current of 0.15 ampere is passsed through a solution of a salt of a metal for 150 minutes, 0.783 gm of the metal is deposited . Find the valency of the metal.(At. Wt. of metal = 112)

State and explain Faraday 's laws of electrolysis. When a current of 6 ampere strength is passed through AgNO_3 solution for 10 minutes, 4 gms of silver is deposited. Find out the electrochemical equivalent of silver.

State and explain Faraday 's laws of electrolysis. A current of 20 amperes is passed through CuSO_4 solution for 1 hr. How many grams of copper will be deposited ?

State and explain Faraday 's laws of electrolysis. A current of 5 amperes is passed through an electrolyte for 15 minutes when 4 gms of the metal was deposited. Calculate the ECE of the metal.

A current of 0.15 amperes strength is passed for 150 minutes through a soln. of a metal, 0.785 gm of metal was deposited. Find the valency of the metal. (At.wt.of the metal : 112)

State and explain Faraday's laws of electrolysis. When a current of 24A strength is passed through AgNO_(3) solution for 10 min 16 grams of silver is deposited . Find out the electrochemical equivalent of silver.

State and explain Faraday 's laws of electrolysis. A current of 6 amperes is passed through a solution of Ag NO_3 for 20 minutes. 8 gm of silver is deposited. Find out the electrochemical equivalent of silver.

A current of 0.15 A passed through a salt solution for 150 minute depositing 0.783 g of the metal . If atomic mass of the metal is 112, then find valency of the metal.