A Lab Technician Adds 0

question 3

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:

Prepaid Insurance

An asset account that represents the amount paid for insurance coverage in advance of the service period.

Depreciation Expense

Depreciation expense is the allocated reduction of the cost of a tangible fixed asset over its useful life, reflecting its wear and tear, or obsolescence.

Net Loss

The amount by which a company's expenses exceed its revenue over a specific period, indicating negative profitability.

Supplies on Hand

The value of supplies that have not yet been used by the company, classified as a current asset on the balance sheet.