A Buffer Is Prepared by Combining 25 ML of 0

question 18

Multiple Choice

A buffer is prepared by combining 25 mL of 0.50 M NH₃(aq) with 25 mL of 0.20 M HCl.What is the pH of the buffer? (K_a (NH₄⁺) = 5.6 × 10−¹⁰)

• A) 7.76
• B) 8.00
• C) 8.86
• D) 9.43
• E) 9.65

---

Definitions:

Macrosociology

A branch of sociology that concerns itself with the analysis of large-scale social systems and the overall social structure of societies.

Feminist Perspectives

Diverse viewpoints within feminism that analyze the structures leading to gender inequality and advocate for the rights and equality of all genders.

Staples Thesis

An economic theory suggesting that the development of economies depends on the export of natural resources or "staples."

Fur Trade

The buying and selling of animal fur as a commercial enterprise, historically a major driver of exploration and settlement in North American regions.