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04.07.2020 •
Chemistry
CHEGG You are titrating 25.025.0 mL of 0.0100 M Sn2 Sn2 in 1 M HCl HCl with 0.0500 M Tl3 Tl3 resulting in the formation of Sn4 Sn4 and Tl Tl . A PtPt indicator electrode and a saturated Ag|AgCl Ag|AgCl reference electrode are used to monitor the titration. What is the balanced titration reaction
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Ответ:
Tl³⁺ + Sn²⁺ → Tl⁺ + Sn⁴⁺
Explanation:
In a redox reaction, one compound is oxidized (Loosing electrons) whereas the other compound is reduced (Gaining electrons). In the reaction, the half-reactions of oxidation and reduction are:
Sn²⁺ → 2e⁻ + Sn⁴⁺ (Oxidation: Loosing electrons)
Tl³⁺ + 2e⁻ → Tl⁺ (Reduction: Gaining electrons)
The sum of both reactions gives:
Tl³⁺ + Sn²⁺ + 2e⁻ → Tl⁺ + 2e⁻ + Sn⁴⁺
Subtracting the electrons:
Tl³⁺ + Sn²⁺ → Tl⁺ + Sn⁴⁺Ответ: