A Solution Contains 0

question 58

Multiple Choice

A solution contains 0.10 M Ca²⁺ and 0.10 M Mg²⁺.The pH of the solution is raised without changing the volume of the solution.What percentage of Mg²⁺ remains in solution when Ca(OH) ₂(s) first begins to precipitate? (K_sp of Ca(OH) ₂ = 4.0 × 10−⁶ and K_sp of Mg(OH) ₂ = 7.1 × 10−¹²)

• A) 1.8 × 10−⁴ %
• B) 4.0 × 10−⁴ %
• C) 6.3 × 10−³ %
• D) 7.2 × 10−³ %
• E) 1.4 × 10−² %

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Definitions:

Sense Of Dethronement

The emotional turmoil or conflict experienced, often by a firstborn child, upon the arrival of a new sibling, feeling replaced or 'dethroned' from a position of importance in the parents' attentions.

First-Born

The term refers to a child who is born first in birth order in a family, often associated with certain personality traits and characteristics.

Youngest Child

The term for the final-born child in a family, who may experience different parenting styles, expectations, and sibling dynamics compared to their older siblings.

Style Of Life

A concept introduced by Alfred Adler that refers to an individual's unique way of achieving superiority or success, shaped by childhood experiences, personal skills, and societal expectations.