Exactly 19

question 14

Multiple Choice

Exactly 19.36 mL of 0.1481 M NaOH is used to titrate a 25.00 mL sample of HF.What is the concentration of the hydrofluoric acid?

• A) 6.464 × 10−² M
• B) 1.147 × 10−¹ M
• C) 1.916 × 10−¹ M
• D) 2.867 × 10−³ M
• E) 6.570 × 10−³ M

---

Definitions:

Project Loon

An initiative by Alphabet (Google's parent company) aimed at providing internet access to remote areas via high-altitude balloons.

Ethical Implications

The broader impacts, both positive and negative, that a decision or action may have on society, individuals, and the environment in ethical terms.

GPS System

Global Positioning System, a satellite-based navigation system that provides location and time information globally.

Satellites

Satellites are objects placed into orbit around Earth or other planets for communication, navigation, weather observation, and research.