How Many Moles of CaF₂ Will Dissolve in 3

question 108

Multiple Choice

How many moles of CaF₂ will dissolve in 3.0 L of 0.041 M NaF solution? (K_sp for CaF₂ = 4.0 × 10^-11)

• A)3.3 × 10^-10
• B)2.4 × 10^-8
• C)7.1 × 10^-8
• D)7.9 × 10^-9
• E)none of these

---

Definitions:

Blackface

A racially insensitive practice where performers darken their skin to imitate and stereotype African Americans, historically common in minstrel shows and other forms of entertainment.

Vaudevillian Performance

A type of entertainment popular in the early 20th century, consisting of a mixture of specialty acts such as burlesque comedy, song, and dance.

Hand-tinting

A method of manually adding color to black-and-white photographs or films, often resulting in a distinctive, artistic look.

Uniform Tinting

The process of applying a single color tone across an entire film or visual piece, often used in early cinema to convey mood or time of day.