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What is seen at the anode when a solution of copper chloride is electrolysed?
Wiki User
∙ 8y ago
In MOLTEN zinc chloride, At the cathode: Zn2+ + 2e- --> Zn(s)
At the anode: 2Cl- --> Cl2(g) + 2e- In CONCENTRATED aqueous zinc chloride solution, At the cathode: 2H+ + 2e- --> H2(g)
At the anode: 2Cl- --> Cl2(g) + 2e- (Zinc is not formed as it's Enaught value is very negative. Chlorine is still formed though.)
In dilute (less than 5%) squeous zinc chloride solution, At the cathode: 2H+ + 2e- --> H2(g)
At the anode: 2O2- --> O2(g) + 4e-
Wiki User
∙ 16y ago
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How can copper be separated from solution of copper compounds?
Usually in a school experiment, you put copper solution into glass. Then you add Positively and negatively charged sticks which are connected with each other and plugged into electricity, which makes pure copper form on the negatively charged stick.
How is electrolysis used to purify metals?
TRUE!
What will be the products on cathode and anode during electrolysis of the solution of magnesium sulphate?
Cathode - Hydrogen Anode - Oxygen
What is an anode slime?
An anode slime is a sediment which settles at the bottom of a copper electrorefining cell, which is rich in silver, gold, selenium and tellurium.
What happens to the mass of the metal anode as the cell continues to operate?
It depends on the specifics of the cell, but in most simple galvanic cells, the anode slowly dissolves into solution.
Why should copper sulphate solution be acidified during copper electroplating?
to transfer anode to cathode
What will happen when electrolysis of dilute sodium chloride solution using copper and zinc electrode?
Usually hydrogen will evolve from the cathode and oxygen from the anode, but if zinc is the anode, it may dissolve to produce zinc ions in the solution either instead of or along with oxygen evolving.
What is used as the anode in sodium chloride electrolysis?
For example titanium (electrolysis in water solution).
Why anode is eaten up in electrorefining process?
In electrolytic refining,anode contains the impure aopper and when current passes through solution all the impure copper ions from anode dissolve in solution and thus when all ion discharge anode becomes empty and thus eaten up.
What products are formed during the electrolysis of sodium chloride solution?
during the electrolysis of Sodium Chloride chhlorine gas is produced at the anode and hydrogen gas is produced at the cathose.
What happens when electricity is passed through aqueous solution of sodium chloride?
In aqueous solution, H2 is evolved at the cathode (instead of sodium) and chlorine gas is collected at the anode.
Why is an electric current needed to form sodium and chlorine from the sodium chloride solution?
This may be a trick question, electrolyis of a sodium chloride solution produces chlorine at the anode but does not produce sodium at the cathode. Electrolysis of molten sodium chloride does however produce sodium and chlorine.
How can copper be separated from solution of copper compounds?
Usually in a school experiment, you put copper solution into glass. Then you add Positively and negatively charged sticks which are connected with each other and plugged into electricity, which makes pure copper form on the negatively charged stick.
How do you make copper hydroxide?
Copper(II) hydroxide can be produced by adding a small amount of sodium hydroxide to a dilute solution of copper(II) sulfate (CuSO4 · 5H2O). The precipitate produced in this manner, however, often contains water molecules and an appreciable amount of sodium hydroxide impurity. A purer product can be attained if ammonium chloride is added to the solution beforehand. Alternatively, copper hydroxide is readily made by electrolysis of water (containing a little electrolyte such as sodium bicarbonate). A copper anode is used, often made from scrap copper.
Why does the blue colour remains blue during electrolysis of copper sulphate solution using copper electrodes?
During the electrolysis of Copper sulphate ,at the cathode ,copper and hydrogen both being positively charged migrate towards the cathode.While at the anode
Why is copper used for the electrodes?
Because sulphate ions move towards anode (copper) the copper of anode donates 2 electrons to external circuit and becomes +2 ions and moves to the solution so copper anode continuously dissolves in solution.
What is the anode and cathode of Baghdad's battery?
the copper cylinder(cathode) and iron rod(anode)
