Physics, 16.03.2020 20:53 anglegirl2313

Electroplating is a way to coat a complex metal object with a very thin (and hence inexpensive) layer of a precious metal, such as silver or gold. In essence the metal object is made the cathode of an electrolytic cell in which the precious metal cations are dissolved in aqueous solution. Suppose a current of is passed through an electroplating cell with an aqueous solution of in the cathode compartment for seconds. Calculate the mass of pure silver deposited on a metal object made into the cathode of the cell.

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Electroplating is a way to coat a complex metal object with a very thin (and hence inexpensive) layer of a precious metal, such as silver or gold. In essence the metal object is made the cathode of an electrolytic cell in which the precious metal cations are dissolved in aqueous solution.

Suppose a current of 0.110A is passed through an electroplating cell with an aqueous solution of AgNO3 in the cathode compartment for 84.0 seconds. Calculate the mass of pure silver deposited on a metal object made into the cathode of the cell.

Round your answer to 3 significant digits. Also, be sure your answer contains a unit symbol.

0.0103g of Ag

Explanation:

First we put down the reduction equation at the cathode showing the exact number of electrons transferred. In this case, only one electron was transferred.

But 1 mole of electrons =96500C of charge.

And Q=It that is current ×time

Substituting the values stated in the question, we obtain our answer as shown in the image attached.

Electroplating is a way to coat a complex metal object with a very thin (and hence inexpensive) laye

Answer from: Quest

explanation:

Answer from: Quest

Is a vector quantity that refers to "the rate at which an object changes its position." imagine a person moving rapidly - one step forward and one step back - always returning to the original starting position. while this might result in a frenzy of activity, it would result in a zero velocity. because the person always returns to the original position, the motion would never result in a change in position. since velocity is defined as the rate at which the position changes, this motion results in zero velocity. if a person in motion wishes to maximize their velocity, then that person must make every effort to maximize the amount that they are displaced from their original position. every step must go into moving that person further from where he or she started. for certain, the person should never change directions and begin to return to the starting position.

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