What is anode mud?

During the process of electrolytic refining of copper some metals present as impurity settle as 'anode mud' . These are :

If E^(c-)._((Ag|Ag^(o+)))=-0.8V and E^(c-)._((H_(2)|2H^(o+)))=0 V , in a cell arrangement using these two electrodes, find E^(c-)._(cell) and find out which electrode acts as anode and which acts as cathode.

What is gangue and what is concentration?

An ionisation chamber with parallel conducting plates as anode and cathode has 5 xx 10^7 electrons and the same electrons are moving towards anode with velocity 0.4 m//s . The current density from anode to cathode is 4 muA//m^2 . The velocity of positive ions moving towards cathode is

a) For the electrochemical cell represented as: Cu_((s))|Cu_((aq))^(2+)||Ag_((aq))^(+)|Ag_((s)) , write the half cell reaction that occurs at (i) anode (ii) cathode

Mention the reactions occuring at (i) anode (ii) cathode , during working of a mercury cell. Why does the voltage of a mercury cell remain constant during its operation?

What is meant by an anode used in vacuum tube?