Question
Mass in grams of copper deposited by passing 9.6487 A current through a voltmeter containing copper sulphate solution for 100 seconds is (Given : Molar mass of Cu : 63 ~g ~mol ^ -1 , 1 ~F =96487 C )
NEET
Chemistry
Electrochemistry
2024
NEET 2024
NEET Chemistry Question (2024) — Solution
Options
- A. 0.315 g
- B. 31.5 g
- C. 0.0315 g
- D. 3.15 g
Answer
A. 0.315 g
Step-by-step solution
Cu ^ 2+ ( aq )+2 e ^ - Cu ( s ) aligned Mass of Cu deposited (w) & = M i t n F \\ & = 63 9.6487 100 2 96487 \\ & =0.315 ~g aligned
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