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What mass of copper could be electroplated on the cathode where average of 200 mA was passed through the cell for 35 seconds?
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∙ 10y ago
0.138g
Wiki User
∙ 10y ago
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When electric current is passed through water which gas is produced on cathode?
When an electric current is passed through water oxygen gas is produced on cathode because oxygen is positive and cathode is negative . So, oxygen is produced.
In what would one find a cathode?
You would find a cathode in a polarized electrical device. A cathode is an electrode that energy flows through and out of. Positively charged cations are attracted to cathodes.
What is the function of electron gun?
through an electron gun beams of cathode and anode comes out.
What happens when electric current is passed through acidified water?
when electric current is passed through acidified water hydrogen gas is released at the cathode..
Why goldstein used perforated cathode in proton discovery?
So that the Canal Rays(Anode Rays) could pass through it.
How silver plate is put on teaspoons?
It is electroplated onto nickel-silver blanks.In a solution of silver nitrate an electric charge is passed from a silver cathode to the anode to which the spoon blank is attached. This transfers silver from the silver cathode through the solution to the spoon.
Does electroplated mean gold plated?
A thin layer of gold, normally less than 5 microns, obtained by making the plated object a cathode in gold solution bath
What is cathode and anode?
cathode is electron negative but anode is positiveAnswerFor electrochemical cells, electrons travel through the external circuit from the anode to the cathode.
When electric current is passed through water which gas is produced on cathode?
When an electric current is passed through water oxygen gas is produced on cathode because oxygen is positive and cathode is negative . So, oxygen is produced.
In what would one find a cathode?
You would find a cathode in a polarized electrical device. A cathode is an electrode that energy flows through and out of. Positively charged cations are attracted to cathodes.
Why is the cathode-ray tube in figure 4 connected to a vacuum pump?
A Cathode-ray tube is a vacuum that is used to get the air out. Cathode rays (electrons) cannot penetrate through any significant amount of air.
What is the measurement of speed at which electrons pass through the anode to the cathode?
KVp
When electric current pass through water.Which gases r obtained as anode and which obtain as cathode?
Oxygen at positive anode and Hydrogen at negative cathode
Why cathode rays are negatively charged?
Cathode rays are produced when the metal cathode has a high voltage applied to it - this has the effect of "boiling" the electrons off the cathode's surface producing cathode rays, and so cathode rays can be seen as a stream of electrons i.e. negatively charged particles.AnswerElectrons are released from the surface of a cathode through thermionic emission. This is achieved by a heaterlocated at the cathode, and not due to a high voltage. The function of the high voltage (between the cathode and an anode placed closer to the screen) is to attract these electrons towards the screen of the CRT. So a 'cathode ray' is simply a beam of electrons which, of course, are negatively charged.
What happens in a hydrogen-oxygen fuel cell?
Oxygen diffuses through the cathode
What happens in a hydrogen oxygen fuel cell?
Oxygen diffuses through the cathode
What is the modern day name for cathode ray tube?
The Cathode Ray Tube is called CRT, but I don't know of any "modern day" name. I know it was discovered by J.J. Thomson, who discovered electrons through the Cathode Ray Tube.
