The stopcocks on the buret are opened, and the levelling bulb is raised until th

Question

The stopcocks on the buret are opened, and the levelling bulb is raised until the burets are completely full of electrolyte solution. The stopcocks are then closed.

Current is passed through the apparatus for 2 minutes to saturate the electrolyte solution in the burets with H2 and O2. Then, the current is turned off, the stopcocks are opened, and the levelling bulb is raised again to fill the burets with electrolyte solution. The stopcocks are closed and the current is turned on. The exact times at which these procedures are done are recorded.

Question #1.
The experiment was entirely about the electrolysis of water, even though the apparatus is filled with aqueous sodium sulfate solution.
(a) What is the function of the sodium sulfate in this experiment?
(b) Could you use other electrolytes in place of sodium sulfate and still get the same electrolysis reaction?
(c) Name an electrolyte that could not be used in place of sodium sulfate, and explain why not.

Thank you very much for your time :))

Explanation / Answer

A)sodium sulfate is use to ionized water because water is a weak electrolyte

B)yes, we can use sodium nitrate solution, we can use the solution in which the metal is more electro positive than hydrogen.

C) we donot use copper sulfate solution in this electrolysis because in this case copper deposit at cathode and hydrogen gas not obtain at cathode.

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