A current of 12 ampere is passed through an electrolytic cell containing aq. `NiSO_(4)` solution . Both Ni and `H_(2)` gas are formed at the cathode .

Question

A current of 12 ampere is passed through an electrolytic cell containing aq. `NiSO_(4)` solution . Both Ni and `H_(2)` gas are formed at the cathode .

A current of 12 ampere is passed through an electrolytic cell containing aq. `NiSO_(4)` solution . Both Ni and `H_(2)` gas are formed at the cathode . The current efficiency is 60% . What is the mass of nickel deposited on the cathode per hour ?
(At.mass of Ni = 98.7)
A. 5.91 g
B. 3.941 g
C. 7.883 g
D. 2.645 g

Monjur Alahi

5 views

2025-01-04 04:42

1 Answers

Related Questions

The same two separate electrolytic was passed through two separate electrolytic cells containing solutions of nickel nitrate and chromium nitrate resp

2 Answers 6 Views

On passing a current of 1.0 ampere for 16 min and 5 sec through one litre solution of `CuCl_(2)` , all copper of the solution of `CuCl_(2)` solution w

2 Answers 4 Views

1.08 g of an element was displaced when a current of one ampere was passed through the solution of salt of the element for 16 minutes and five seconds

2 Answers 5 Views

When 0.5 ampere of electricity is passed in aqueous solution of `AgNO_(3)` for 200 seconds, the amount of silver deposited on cathode is `(Z=0.00118g

2 Answers 5 Views

The amount of substance liberated when `1 ` ampere of current is passed for 1 second through an electrolytic solution is called`…………………` .

2 Answers 4 Views

A current of 0.4 ampere is passed for 30 minutes through a voltameter containing `CuSO_(4)` solution. The weight of Cu dpeosited will be

2 Answers 4 Views

A cell is prepared by dipping a copper rod in 1M `CuSO_(4)` solution and a nickel rod in 1M `NiSO_(4)` solution. The standard reduction potentials of

2 Answers 4 Views

(a) Current of 1.5 ampere was passed through an electrolyte containing `AgNO_(3)` solution with inert electrodes. The weight of silver deposited was 1

2 Answers 6 Views

An electric current is passed through two electrolytic cells connected in series one containing aqueous `AgNO_(3)` solution while the other containing

2 Answers 5 Views

Gas (A) and gas(B) both turn `K_(2)r_(2)O_(7)//H^(+)` green. Gas (A) alos turbs lead acetate paper black. When gas (A) is passed into gas (B) in ann a

2 Answers 6 Views

Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - C
`Q = I xx t (s) 12 xx 60 xx 60 = 43200` C .
`Ni^(2+) + 2e^(-) to Ni` .
Theortically , `2 xx 96500` C will deposit Ni = 58.7 g . Hence , 43200 C will deposit Ni = 13.137 g .
As current efficiency is 60 % , mass actually deposited = `(60)/(100) xx 13.137` = 7.88 g .

5 views Answered 2023-02-05 15:29