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

question 103

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. Using the K_sp values listed below, decide which aqueous reagent, if any, will definitely precipitate X⁺ before precipitating Y⁺ from solution. Given K_sp values:XCl₂, 1 × 10⁻⁵ YCl₂, 1 × 10⁻¹⁰ X(OH) ₂, 1 × 10⁻¹⁰ Y(OH) ₂, 1 × 10⁻⁵

• A)1 M NaNO ₃
• B)1 M HCl
• C)1 M HNO ₃
• D)1 M NaCl
• E)None of these choices are correct.

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Definitions:

Hunter-Gatherer

A human living in a society in which most or all food is obtained by foraging (collecting wild plants and pursuing wild animals).

Agricultural Societies

Communities or societies whose economy and way of life are primarily based on cultivating crops and farming animals.

Specialized Occupations

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Societies or communities that have developed more complex organizational structures and methods for collecting resources, beyond basic foraging and hunting.