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A mass of 0.296 gm of copper is deposited from a solution of copper sulphate by a current 0.5 amp in 30 min. The e.c.e. of copper is
- a)0.00022 g/c
- b)0.00033 g/c
- c)0.00011 g/c
- d)0.00066 g/c
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
A mass of 0.296 gm of copper is deposited from a solution of copper su...
Given:
Mass of copper deposited, m = 0.296 g
Current, I = 0.5 A
Time, t = 30 min = 1800 s
We know that charge (Q) = I × t
Charge on 1 mole of electrons = 1 Faraday = 96500 C
Therefore, charge on x moles of electrons = x × 96500 C
Now, we can calculate the number of moles of electrons involved in the electrolysis reaction as follows:
n = Q / (96500 × ECE)
where ECE is the electrochemical equivalent of copper.
We know that the molar mass of copper is 63.55 g/mol. Therefore, the number of moles of copper deposited can be calculated as:
n = m / M
where M is the molar mass of copper.
Equating the above two equations, we get:
m / M = Q / (96500 × ECE)
Solving for ECE, we get:
ECE = Q / (96500 × m / M)
Substituting the given values, we get:
ECE = 0.5 × 1800 / (96500 × 0.296 / 63.55)
ECE = 0.00033 g/C
Therefore, the electrochemical equivalent of copper is 0.00033 g/C, which is option (b).
Mass of copper deposited, m = 0.296 g
Current, I = 0.5 A
Time, t = 30 min = 1800 s
We know that charge (Q) = I × t
Charge on 1 mole of electrons = 1 Faraday = 96500 C
Therefore, charge on x moles of electrons = x × 96500 C
Now, we can calculate the number of moles of electrons involved in the electrolysis reaction as follows:
n = Q / (96500 × ECE)
where ECE is the electrochemical equivalent of copper.
We know that the molar mass of copper is 63.55 g/mol. Therefore, the number of moles of copper deposited can be calculated as:
n = m / M
where M is the molar mass of copper.
Equating the above two equations, we get:
m / M = Q / (96500 × ECE)
Solving for ECE, we get:
ECE = Q / (96500 × m / M)
Substituting the given values, we get:
ECE = 0.5 × 1800 / (96500 × 0.296 / 63.55)
ECE = 0.00033 g/C
Therefore, the electrochemical equivalent of copper is 0.00033 g/C, which is option (b).
Community Answer
A mass of 0.296 gm of copper is deposited from a solution of copper su...
C
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A mass of 0.296 gm of copper is deposited from a solution of copper sulphate by a current 0.5 amp in 30 min. The e.c.e. of copper isa)0.00022 g/cb)0.00033 g/cc)0.00011 g/cd)0.00066 g/cCorrect answer is option 'B'. Can you explain this answer?
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A mass of 0.296 gm of copper is deposited from a solution of copper sulphate by a current 0.5 amp in 30 min. The e.c.e. of copper isa)0.00022 g/cb)0.00033 g/cc)0.00011 g/cd)0.00066 g/cCorrect answer is option 'B'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about A mass of 0.296 gm of copper is deposited from a solution of copper sulphate by a current 0.5 amp in 30 min. The e.c.e. of copper isa)0.00022 g/cb)0.00033 g/cc)0.00011 g/cd)0.00066 g/cCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A mass of 0.296 gm of copper is deposited from a solution of copper sulphate by a current 0.5 amp in 30 min. The e.c.e. of copper isa)0.00022 g/cb)0.00033 g/cc)0.00011 g/cd)0.00066 g/cCorrect answer is option 'B'. Can you explain this answer?.
A mass of 0.296 gm of copper is deposited from a solution of copper sulphate by a current 0.5 amp in 30 min. The e.c.e. of copper isa)0.00022 g/cb)0.00033 g/cc)0.00011 g/cd)0.00066 g/cCorrect answer is option 'B'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about A mass of 0.296 gm of copper is deposited from a solution of copper sulphate by a current 0.5 amp in 30 min. The e.c.e. of copper isa)0.00022 g/cb)0.00033 g/cc)0.00011 g/cd)0.00066 g/cCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A mass of 0.296 gm of copper is deposited from a solution of copper sulphate by a current 0.5 amp in 30 min. The e.c.e. of copper isa)0.00022 g/cb)0.00033 g/cc)0.00011 g/cd)0.00066 g/cCorrect answer is option 'B'. Can you explain this answer?.
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