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I'm not completely certain about this but I'm convinced that an anode actually loses mass.
For example, in the cell equations for an Ag(s) cathode being dipped into an AgNO3 solution, connected to a Cu(s) anode being dipped into a Cu(NO3)2 solition,
2Ag+(aq) + 2e- -> 2Ag(s) (Cathode 1/2 reaction, reduction)
Cu(s) -> Cu2+(aq) +2e- (Anode 1/2 reaction, oxidation)
, the cathode reaction is taking the Ag+(aq) ions in the AgNO3- solution and turning them into solid silver, Ag(s). Therefore, I believe it is correct to assume that solid silver is being formed in the cathode solution.
The anode half reaction however is the opposite, taking a solid copper atom, Cu(s), and turning it into an aqueous copper cation, Cu2+(aq). This leads me to believe that the copper rod (anode) is losing mass.
So, I believe the cathode is gaining mass and the anode is losing mass.
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∙ 13y ago
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How does the mass to charge ratio of cathode rays compare to that of anode rays?
it varies because charge to mass ratio of positive rays depends upon gases used in the discharge tube.its varies from gas to gas.
The em value of cathode rays is always constant but the em value of positive rays is not constant why?
Anode rays differ from cathode rays in several aspects and their specific charge(charge/mass or e/m ratio) is an important feature. The reason lies in how anode rays are produced. Anode rays are produced when a gas at low pressure is subjected to a high voltage(10,000 Volts). Under these conditions, the atoms of the gas get ionized, i.e. they lose some electrons and thus become cations(positive ions). It is a stream of these positive ions that become 'anode rays'. However, the atomic masses of different gases are different and hence, the mass of anode ray particles varies when you use different gases in the discharge tube and hence, the charge/mass ratio also varies. Whereas, in the case of cathode rays, the cathode ray particles are nothing but electrons. Their charge and mass is constant no matter what gas you use in the discharge tube. So, their charge/mass ratio remains constant. (ANSWER BY RIZWAN FROM PAKISTAN)
Name of one electrode and say is positive or negative?
The Cathode is the negative electrode; the anode is the positive electrode
What happens at the anode in an electrolytic cell?
oxidation
In electrolysis electrons move between two metal strips called?
Electrodes, the positive side is called the Cathode and the Negative side is called the Anode.The anode and cathode. The anode is positively charged and the cathode is negative.
What happens to the anode in an electrochemical cell?
it loses mass
What is always true during the operation of a voltaic cell?
During the operation of a voltaic cell, electrons flow from the anode to the cathode through an external circuit, generating an electric current. The anode undergoes oxidation (loses electrons), while the cathode undergoes reduction (gains electrons). This process is driven by a redox reaction occurring within the cell.
What happens to an anode in an electrochemical cell?
it loses mass
How does the mass to charge ratio of cathode rays compare to that of anode rays?
it varies because charge to mass ratio of positive rays depends upon gases used in the discharge tube.its varies from gas to gas.
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.
What does not gain or lose mass?
a closed system will not gain or lose mass
What types of anode?
the two types of anode is stationary anode and rotating anode
In a simple cell the cathode or the anode is more reactive?
In a simple cell, the anode is typically more reactive than the cathode. The anode undergoes oxidation, releasing electrons, while the cathode undergoes reduction, accepting those electrons. This difference in reactivity drives the flow of electrons from the anode to the cathode, generating electrical energy.
Does the earth gain mass by photosynthesis?
no it doesnt gain mass at allIt can change the bio mass. But cannot change the mass of earth as it uses resources within earth
If you put a carrot in water will it gain or lose mass?
if anything it would be reasonable to expect it to lose mass.
Is iron a anode or cathode?
it is an anode
Will you gain muscle weight if you grow taller playing basketball?
Answer: Your frame size will become larger so you will gain weight, but not from muscle mass. You can gain muscle mass from exercise.
