The Salts X(NO₃)₂ and Y(NO₃)₂ (Where X⁺ and Y⁺ Are

question 43

Multiple Choice

The salts X(NO₃) ₂ and Y(NO₃) ₂ (where X⁺ and Y⁺ are metal ions) are dissolved in water to give a solution which is 0.1 M in each of them. Which of the answers gives the concentration of chloride ions will precipitate the most YCl₂ without precipitating any XCl₂? Given K_sp values: XCl₂, 2 × 10⁻⁵ YCl₂, 1 × 10⁻¹⁰

• A)1 M Cl ⁻
• B)0.1 M Cl ⁻
• C)0.01 M Cl ⁻
• D)0.001 M Cl ⁻
• E)0.0001 M Cl ⁻

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