A Lab Technician Adds 0

question 23

Multiple Choice

A lab technician adds 0.20 mol of NaF to 1.00 L of 0.35 M cadmium nitrate, Cd(NO₃) ₂. Which of the following statements is correct? K_sp = 6.44 * 10¯³ for CdF₂.

• A) Cadmium fluoride precipitates until the solution is saturated.
• B) The solution is unsaturated and no precipitate forms.
• C) The solubility of cadmium fluoride is increased by the presence of additional fluoride ions.
• D) One must know K_sp for cadmium nitrate to make meaningful predictions on this system.
• E) The presence of NaF will raise the solubility of Cd(NO₃)₂.

---

Definitions:

Monozygotic Twins

Identical twins that result from a single fertilized egg splitting and developing into two individuals with exactly the same genetic material.

Heritable Trait

A characteristic that is transferred from parent to offspring through the genes, subject to the principles of genetic inheritance.

Knowledge-Based Questions

are inquiries that require an understanding of facts, concepts, and information, as opposed to opinions or personal interpretations.

Crystallized Intelligence

Crystallized intelligence is the ability to use skills, knowledge, and experience; it does not equate to memory or knowledge but rather the ability to use them appropriately.