C10 electrolysis

Question 1

what is the anode?

Answer 1

the positive electrode.

Question 2

what is the half equation reaction at the anode, for hydroxide ions?

Answer 2

4OH- / 02 + 2H20 + 4e-

Question 3

describe the standard electrolysis set up.

Answer 3

starting from a d.c. power supply, the positive anode is connected to the positive terminal giving it a positive charge, and the opposite goes for the cathode.
place the electrodes in the electrolyte and the cations(+) will attract to the cathode(-) and once again the same will happen for the opposite anode.
this will seperate the two elements.

Question 4

what does sodium chloride solution form in the beaker after electrolysis?

Answer 4

sodium hydroxide as the chlorine and hydrogen ions for at the electrodes

Question 5

what does sodium sulphate solution form in the beaker after electrolysis?

Answer 5

a more concentrated sodium sulphate as effectively the water is just lost in the process.

Question 6

what does copper chloride solution form in the beaker after electrolysis?

Answer 6

water as copper and chlorine are both are discharged.

Question 7

in the electrolysis of water why is hydrogen gas produced much faster?

Answer 7

as in water for every one oxygen atom there are two hydrogen atoms.
- H2O