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1.An electrical current of 0.852 amperes is passed through a circuit that includes a Cr metal electrode in solution. As the current passes through the circuit, the Cr metal is dissolved, forming Cr 3+ ions in solution. a.If the current is passed for 20.0 minutes, how many coulombs of charge have passed through the circuit? b.Based on your answer to (a), how many electrons have passed through the circuit? (e = 1.60210 -19 coulombs) c.Based on your answer to (b), how many Cr 3+ ions have been formed? d.If 0.189 g Cr dissolved, how many moles of Cr were formed?

1.An electrical current of 0.852 amperes is passed through a circuit that includes a Cr metal electrode in solution.  As the current passes through the circuit, the Cr metal is dissolved, forming Cr3+ ions in solution.
a.If the current is passed for 20.0 minutes, how many coulombs of charge have passed through the circuit?

 
b.Based on your answer to (a), how many electrons have passed through the circuit?  (e = 1.60210-19 coulombs)


 
c.Based on your answer to (b), how many Cr3+ ions have been formed?


 
d.If 0.189 g Cr dissolved, how many moles of Cr were formed?
 

Grade:12

1 Answers

Vikas TU
14149 Points
4 years ago
Dear student 
Please attach an image of the question , the queston is not clear. 
We will help You 
Good Luck 
Cheers 

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