Chemistry, asked by leenamadavi, 9 months ago

electrolysis of NI 2 + solution is carried out using a current of 2.50 ampere for 2 hours what is the mass of nickel obtained in grams

Answers

Answered by kritikaacharya904

1

Answer:

Given

I=5A

Time=20×60=1200s

∴Charge=current×time

=5×1200

=6000C

According to the reaction.

Ni

2+

(aq.)+2e→Ni(s)

Nickeldepositeby(2×96487)C=58.7g

∴Nickeldepositeby 6000C=

2×96487

58.7×6000

=1.825g

∴ Hence 1.825g of nickel will be deposited at the cathode

I hope this will help you

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