The salts X(NO₃)₂and 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. Using the K_sp values listed below, decide which aqueous reagent, if any, will definitely precipitate X⁺ before precipitating Y⁺ from solution. Given K_spvalues:XCl₂, 1 × 10⁻⁵ YCl₂, 1 × 10⁻¹⁰ X(OH)₂, 1 × 10⁻¹⁰Y(OH)₂, 1 × 10⁻⁵ A)1 M NH ₃ B)1 M HCl C)1 M HNO ₃ D)1 M NaCl E)None of these choices are correct.

Question

Quizplus · Accepted Answer

Ammonia (NH₃) will increase the concentration of OH⁻ ions in solution, which will cause X(OH)₂ to precipitate first due to its lower Ksp value compared to Y(OH)₂.

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

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