What is the voltage of an electrolytic cell with copper and magnesium electrodes answers com?

Returning to the copper-magnesium galvanic cell, the standard electrode potential of copper is 0.337 volts, while the standard electrode potential of magnesium is -2.370 volts.

Which electrode will increase in mass and why?

The electrode at which reduction occurs is called the cathode . The cathode gradually increases in mass because of the production of copper metal.

What can increase the voltage difference between a metal electrode and a solution?

In an electrochemical cell, increasing the concentration of reactants will increase the voltage difference, as you have indicated. A higher concentration of reactant allows more reactions in the forward direction so it reacts faster, and the result is observed as a higher voltage.

What factors affect the voltage of a galvanic cell?

The three factors, Surface area, Concentration and Temperature. Each of these factors will be explored to see how they affect the current generated by the cell.

How do galvanic cells produce voltage?

Electrochemical cells produce a voltage by making the electrons from a spontaneous reduction-oxidation reaction flow through an external circuit. The tendency of the system to go to a lower energy state shows up as a voltage (potential energy) difference between the electrodes.

What would be the anode in a magnesium and zinc galvanic cell?

Between zinc and magnesium, magnesium is the stronger reducing agent. Since the stronger reducing agent is always oxidized, and oxidation occurs at the anode, the anode can be identified. Since magnesium is the stronger reducing agent, magnesium is oxidized and thus is the anode in the galvanic cell.

Why does electrolysis of copper sulphate using copper electrodes The weight of anode decrease?

The decrease in the weight of copper anode is equal to the increase in weight of copper cathode. From the above equations it can be deduced that for every Cu2+ discharging at cathode a copper atom ionises from anode to form Cu2+ ion. Thus concentration of copper ions in electrolyte remain unchanged.

Which electrode is the anode in a galvanic cell?

The anode is the electrode where oxidation (loss of electrons) takes place; in a galvanic cell, it is the negative electrode, as when oxidation occurs, electrons are left behind on the electrode. The anode is also the electrode where metal atoms give up their electrons to the metal and go into solution.

How does temperature affect voltage in a galvanic cell?

From the experiment performed using the Nernst equation, it was hypothesized that the voltage produced by the galvanic cell would decrease as the temperature increases. The voltage and the temperature is inversely proportional to each other.

What affects a galvanic cell?

What factors might affect the production of electricity in a galvanic cell? Surface area of electrolyte. Voltage. Concentration of electrolyte. The electrolyte concentration affects the voltage and the current by the change in the electrical conductivity.

Which action occurs at an electrode of a galvanic cell?

In both kinds of electrochemical cells, the anode is the electrode at which the oxidation half-reaction occurs, and the cathode is the electrode at which the reduction half-reaction occurs.