Write a balanced half-reaction for the oxidation of gaseous arsine to aqueous arsenic acid in basic aqueous solution. Be sure to add physical state symbols where appropriate.

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Soravux · Answer 1 · 2024-02-19T02:49:08+0000

Final answer:

The balanced half-reaction for the oxidation of gaseous arsine to aqueous arsenic acid in basic aqueous solution is AsH3(g) + 3OH-(aq) -> H3AsO4(aq) + 3e-.

Step-by-step explanation:

The balanced half-reaction for the oxidation of gaseous arsine to aqueous arsenic acid in basic aqueous solution is as follows:

AsH3(g) + 3OH-(aq) → H3AsO4(aq) + 3e-

The oxidation state of arsenic in arsine (AsH3) is -3, and it is oxidized to +5 in arsenic acid (H3AsO4). To balance the equation, 3 hydroxide ions (OH-) are added to the reactant side to balance the charge and provide the necessary electrons for the oxidation process.

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Write a balanced half-reaction for the oxidation of gaseous arsine to aqueous arsenic acid in basic aqueous solution. Be sure to add physical state symbols where appropriate.

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