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Passage of charge through aqueous CuSO4 ...

Passage of charge through aqueous `CuSO_4` in the presence of Pt electrodes increases it pH value . Explain.

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Electrolysis is the process in which electrical energy is converted to chemical energy. In electrolyte cell, oxidation takes place at anode and reduction at cathode. Electrode process depends on the electrode taken for electrolysis. Amount of substance liberated at an electrode is directly proportionation to the amount of charge passed through it. The mass of substance liberated at electrode is calculate using the following realation : m=(itE)/(96500) Here, E represent the equivalent mass and 96500 C is called the faraday constant. Faraday (96500 C) is the charge of 1 mole electron i.e., 6.023 xx 10^(23) electrons, it is used to liberate on gram equivalent of the substance. The platinum electrodes were immersed in a solution of cupric sulphate (CuSO_4) and electric current is passed through the solution. After sometimes, it was observed that the colour of copper sulphate disappeared with evolution of a gas at the electrode. The colourless solution contains.

Electrolysis is the process in which electrical energy is converted to chemical energy. In electrolyte cell, oxidation takes place at anode and reduction at cathode. Electrode process depends on the electrode taken for electrolysis. Amount of substance liberated at an electrode is directly proportionation to the amount of charge passed through it. The mass of substance liberated at electrode is calculate using the following realation : m=(itE)/(96500) Here, E represent the equivalent mass and 96500 C is called the faraday constant. Faraday (96500 C) is the charge of 1 mole electron i.e., 6.023 xx 10^(23) electrons, it is used to liberate on gram equivalent of the substance. Calculate the volume of gas liberated at the anode at STP during the electrolysis of a CuSO_4 solution by a current of 1 A passed for 16 minutes and 5 seconds.

AAKASH SERIES-ELECTROCHEMISTRY -EXERCISE - 4.2
  1. Equivalent conductance of a week electrolyte at infinite dilution cann...

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  2. The electrical resistance of a column of 0.05 mol L^(-1) NaOH solution...

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  3. Passage of charge through aqueous CuSO4 in the presence of Pt electrod...

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  4. What do you mean by the electrolysis at active electrodes?

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  5. Discuss the electrolysis products of (a) fused NaCl and (b) aqueous Na...

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  6. Write the difference in the electrolysis of dilute sulphuric acid and ...

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  7. Define and discuss electrochemical equivalent and chemical equivalent.

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  8. Write on the techniques , electroplating and electrotyping.

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  9. What are the main differences between electromotive force of cells and...

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  10. Write the IUPAC notations of representing cathode , anode and galvanic...

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  11. What are reference electrodes ? How is a secondary reference electrode...

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  12. Calculate the time required for a current of 2 amp to decompose one gr...

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  13. An electric current is passed through two solutions (a) AgNO3 and (b)...

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  14. A current of 1.7 amp is passed through 300 ML of 0.16 M ZnSO4 solution...

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  15. A 200 W, 110 V in candescent lamp is connected in series with cells co...

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  16. E^@ of In^(3+), In^(+) and Cu^(2+)m Cu^(+) are -0.4 V and -0.42 V resp...

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  17. NO(3)^(-)(aq) + 2H^(+) (aq) + e^(-) to NO(2)(g) + H2O. Calculate the r...

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  18. How is Nernst equation useful in calculating the potential of a cell?

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  19. Write the working of concentration cell, mercury dry cell and nickel c...

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  20. Discuss the construction and working of lead storage battery.

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