A Lab Technician Adds 0

question 32

Multiple Choice

A lab technician adds 0.015 mol of KOH to 1.00 L of 0.0010 M Ca(NO₃) ₂. K_sp = 6.5 × 10^-6 for Ca(OH) ₂) . Which of the following statements is correct?

• A) Calcium hydroxide precipitates until the solution is saturated.
• B) The solution is unsaturated and no precipitate forms.
• C) The concentration of calcium ions is reduced by the addition of the hydroxide ions.
• D) One must know K_sp for calcium nitrate to make meaningful predictions on this system.
• E) The presence of KOH will raise the solubility of Ca(NO₃)₂.

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Definitions:

Puberty

The phase in human development during which a child matures sexually and becomes capable of reproduction.

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The period of maturation involving both mental and physical changes, occurring from puberty to the age of legal responsibility.

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The commencement of menstruation in females, indicating the start of reproductive ability.

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A parenting style characterized by high demands and low responsiveness, where parents set strict rules and expect obedience without question.