If a Copper(II)nitrate Solution Is Added to a Sodium Sulfide

question 12

Multiple Choice

If a copper(II) nitrate solution is added to a sodium sulfide solution the following equilibrium will be attained: Cu²⁺(aq) + S^2-(aq) CuS(s) .For this equilibrium,K = 6.3*10⁴⁷.Choose the correct equilibrium constant expression and the correct direction favored at equilibrium.

• A)K = forward
• B)K = reverse
• C)K = forward
• D)K = reverse
• E)K = appreciable quantities of all species are present at equilibrium

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