Consider the electrolysis of molten barium chloride (bacl2). write the half-reactions. include the states of each species.

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03-05-2018
Chemistry

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Consider the electrolysis of molten barium chloride (bacl2). write the half-reactions. include the states of each species.

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Dejanras Dejanras · Answer 1 · 2018-05-12T19:37:58+02:00

Dejanras Dejanras

12-05-2018

Molten barium chloride is separeted into two species :
BaCl₂(l) → Ba(l) + Cl₂(g),
but first ionic bonds in this salt are separeted because of heat:
BaCl₂(l) → Ba²⁺(l) + 2Cl⁻(l).

Reaction of reduction at cathode(-): Ba²⁺(l) + 2e⁻ → Ba(l).

Reaction of oxidation at anode(+): 2Cl⁻(l) → Cl₂(g) + 2e⁻.

The anode is positive and the cathode is negative.

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