Would the solubility of Cu2S increase, decease, or stay the same if AgNO3 is added to the solution?
回答 (1)
2016-06-07 7:59 am
Cu₂S(s) ⇌ 2Cu⁺(aq) + S²⁻(aq) ...... [1]
Ag⁺(aq) + Cu⁺(aq) → Ag(s) + Cu²⁺(aq) ...... [2]
On addition on AgNO₃ solution, the Ag⁺(aq) ions in AgNO₃(aq) would undergo redox reaction with Cu⁺(aq) ions as shown in equation [2].
As the consumption of Cu⁺ ions, the equilibrium position of reaction [1] would shift to the right. This INCREASES the solubility of Cu₂S.
Ag⁺(aq) + Cu⁺(aq) → Ag(s) + Cu²⁺(aq) ...... [2]
On addition on AgNO₃ solution, the Ag⁺(aq) ions in AgNO₃(aq) would undergo redox reaction with Cu⁺(aq) ions as shown in equation [2].
As the consumption of Cu⁺ ions, the equilibrium position of reaction [1] would shift to the right. This INCREASES the solubility of Cu₂S.
收錄日期: 2021-05-01 13:04:38
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