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Showing posts with label ELECTROCHEMISTRY. Show all posts
Showing posts with label ELECTROCHEMISTRY. Show all posts
Wednesday, May 29, 2024

Titration of NaOH ( Titrate ) with CH3COOH (Titrant)

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On adding CH3COOH solution to NaOH solution OH–will be replaced by CH3COO– ions, so conductance of solution decreases. After complete neutra...
Friday, May 14, 2021

How many gram Cu will deposited by passing 2 Amp for 30 minutes in aq solution of CuSO4. What will be weight of O2 produced at anode?

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Related Questions: (1)  A current of 2.68 ampere is passed for one hour through an aqueous solution of copper sulphate using copper electrod...
Tuesday, May 11, 2021

Find the Volume of gas evolved by passing 0.965 Amp current for 1 hour through an aqueous solution CH3COONa at 250c and 1 atm?

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Related Questions: (1)  A current of 2.68 ampere is passed for one hour through an aqueous solution of copper sulphate using copper electrod...

During electro refining of Cu how much time is needed to produce 250g Cu on the cathode if the current is kept at 11 A?

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Given that current (i) = 11 A = 11 cycle/second Number of moles of copper deposited on cathode is  Related Questions: (1)  A current of ...

Zn amalgam is prepared by electrolysis of aqueous ZnCl2 using 9 gram Hg cathode. How much current is to be passed through ZnCl2 solution for 1000 seconds to prepare of Zn amalgam with 20% weight? (Atomic wt, Zn = 65.4 g)

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  Let “x “gram of Zn deposited on 9 gm of Hg: Related Questions: (1)  A current of 2.68 ampere is passed for one hour through an aqueous sol...
Monday, May 10, 2021

1 M aqueous solution of NaCl undergo electrolysis if 50 mA current is passed for 12 hours assume current efficiency is 25%. The total volume of gas produced at standard state is. NaCl (aq) solution undergoes electrolysis as:

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NaCl(aq) à Na + + Cl -         H 2 O à H + + HO - Reactions: At cathode: 2H + + 2e - à H 2(g) At anode:    2Cl - à Cl 2(g) +...

How long has a current of 3 ampere to be applied through a solution of silver nitrate to coat a metal surface of 80 cm2 with 0.005 cm thick layer density of silver is 10.5g/cm3.

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Given Area = 80 cm 3    Thickness = 0.0005 cm           Density= 10.5 gl cm 3 Thus Mass of silver deposited on cathode is = 80 cm 3 x ...

0.5 faraday of electricity was passed to deposit all the copper present in 500 ml of CuSO4 solution. What was the Molarity of this solution?

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  Related Questions: (1)  A current of 2.68 ampere is passed for one hour through an aqueous solution of copper sulphate using copper electr...

Ag is electrodeposited on a vessel of total surface area 800 cm2 by passing current of 0.2 A for 3 hrs. Calculate thickness of Ag deposited. (Density Ag = 9.67 g/ml).

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  (1)  A current of 2.68 ampere is passed for one hour through an aqueous solution of copper sulphate using copper electrodes. Calculate the...
Sunday, May 9, 2021

A current of 2.68 ampere is passed for one hour through an aqueous solution of copper sulphate using copper electrodes. Calculate the change in the mass cathode and that of anode. ( atomic mass of copper is 63.5 u).

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Related Questions: (1)  The conductivity of 0.0011028 mol per liter acetic acid is 4.95 × 10–5 S per cm. Calculate its dissociation constant...

What current strength ampere will be require to liberate 10 gm chlorine from sodium chloride solution in one hour?

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  Related Questions: (1)  The conductivity of 0.0011028 mol per liter acetic acid is 4.95 × 10–5 S per cm. Calculate its dissociation consta...
Friday, May 7, 2021

The standard reduction potential for Cu2+/Cu is +0.3.4 volt calculate the reduction potential at PH =14 for above couple. ksp fo Cu(OH)2 is 1.0x10^-19.

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Metal-Metal- Insoluble salts electrode:

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These consist of a metal (M) which is covered by a layer of sparingly soluble salt (MX), immersed in solution containing common ions (X-). A...