A-LevelChemistryEquilibria9701/12 · Feb/Mar 2019 · Q111 Mark
When copper is added to a solution of silver ions, the following equilibrium is established. Cu(s) + 2Ag⁺(aq) ⇌ Cu²⁺(aq) + 2Ag(s) Kᶜ = 1.0 × 10⁵ What is the concentration of silver ions at equilibrium when [Cu²⁺] = 0.10 mol dm⁻³?
A5.0 × 10⁻⁷ mol dm⁻³
B5.0 × 10⁻⁴ mol dm⁻³
C1.0 × 10⁻³ mol dm⁻³
D1.0 × 10⁻² mol dm⁻³
✓ Correct answer
C: 1.0 × 10⁻³ mol dm⁻³
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