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kow [346]
3 years ago
12

a strip of impure copper is given to you. how will you purify it by using chemical effects of electric current ?

Chemistry
2 answers:
Oksi-84 [34.3K]3 years ago
6 0

This can be done through electrolysis. Electrolysis is the separation of a substance  into two or more substances that may differ from each other and from the original substance by passing an electric current through a solution that contains ions.

In the case of copper,  we use a  copper (II) sulphate  solution which we put in a large beaker. The impure copper will be used as the positive electrode (anode) and for the negative electrode (cathode)  will be a bar of pure copper.

When the electric current is switched on, the bar of pure copper which is the cathode  increases greatly in size as copper ions leave the anode of impure copper and attach to  the cathode.  The anode becomes smaller and smaller as it loses copper ions until all that is left of it is impurities in form of a sludge beneath it.


finlep [7]3 years ago
5 0
You would Purify it with magnesium
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5 0
3 years ago
Formula of sodium bicarbonate<br>please help me with this​
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2 years ago
How many liters are equivalent to 43 milliliters?
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The answer is B) 0.043 L

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In this way you can compare the freezing points of solutions of KCl, Ch3OH, Ba(OH)2, and CH3COOH, which have the same concentration.

As I explained the solution that produces more ions will exhibit the greates depression of the freezing point, leading to the lowest freezing point.

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3 years ago
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