Question

Какие вещества можно получить при электролизе водного раствора хлорида натрия с инертными электродами

Answer 1

NaCl
K(-): 2H2O+2e=H2+2OH(-)
A(+): 2СL(-)-2e=Cl2(0)
2NaCl+2H2O=H2+CL2+2NaOH

Answer 2

Electrolysis of Aqueous Sodium Chloride Solution with Inert Electrodes

When performing electrolysis of a aqueous sodium chloride (NaCl) solution with inert electrodes, several substances can be obtained. Here's a detailed breakdown:

1. Hydrogen Gas (H2): - Hydrogen gas is produced at the cathode. - The half-reaction at the cathode is: 2H2O(l) + 2e- -> H2(g) + 2OH-(aq).

2. Chlorine Gas (Cl2): - Chlorine gas is produced at the anode. - The half-reaction at the anode is: 2Cl-(aq) -> Cl2(g) + 2e-.

3. Sodium Hydroxide (NaOH): - Sodium hydroxide is also produced during the electrolysis. - The overall reaction is: 2NaCl(aq) + 2H2O(l) -> H2(g) + Cl2(g) + 2NaOH(aq).

4. Other Possible Substances: - Other substances that may be present in the solution include NaCl, KCl, KClNaCl, MgCl2, KClMgCl2, and KClMgSO4.

In summary, when electrolyzing an aqueous sodium chloride solution with inert electrodes, hydrogen gas, chlorine gas, and sodium hydroxide are the main substances that can be obtained.

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