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A solution of Ni(NO3)2 is electrolysed between platinum electrodes using a current

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asked Dec 13, 2017 in Chemistry by sforrest072 (157,439 points) ● 61 ● 410 ● 939

A solution of Ni(NO3)2 is electrolysed between platinum electrodes using a current of 5 amperes for 20 minutes. What mass of Ni is deposited at the cathode? 

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answered Dec 13, 2017 by mdsamim (213,225 points) ● 5 ● 10 ● 15
selected Dec 13, 2017 by sforrest072
 
Best answer

Given,

 Current = 5A

 Time = 20 × 60 = 1200 s

 Charge = current × time

 = 5 × 1200 = 6000 C

 According to the reaction, 

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