0.452 A 1.5 hr CaCl2 Ca gram

0.452 A 1.5 hr CaCl2 Ca gram

 

 

How much Ca will be produced in an electrolytic cell of molten CaCl2

if a current of 0.452 A is passed through the cell for 1.5 hours?

 

 

 

Q = It

= (0.452 A) (15×3600 s)

= 24408 A•s

= 24408 C

 

 

 

Ca^2+ + 2e^- → Ca

---> Ca 1 mol당 전자 2 mol 이동

 

 

 

> Ca의 몰질량 = 40.08 ≒ 40 g/mol

 

 

 

(24408 C) (1 mol e^- / 96500 C) (1 mol Ca / 2 mol e^-) (40 g/mol)

= (24408) (1 / 96500) (1 / 2) (40)

= 5.06 g Ca

( 참고 https://ywpop.tistory.com/4461 )

 

 

 

 

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