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

question 94

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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