If 30 ML of 0 $\times$ 10^-5 at 25°C

question 54

Multiple Choice

If 30 mL of 0.10 M NaOH is added to 40 mL of 0.20 M HC₂H₃O₂,what is the pH of the resulting solution at 25°C? K_a for HC₂H₃O₂ is 1.8 $\times$ 10^-5 at 25°C.

• A) 10.4
• B) 4.3
• C) 5.0
• D) 2.7
• E) 4.5

---

Definitions:

Proletariat

The class of wage-earners, especially in a capitalist society, who do not own the means of production and whose only sustainable means of livelihood is to sell their labor.

Marx

Refers to Karl Marx, a 19th-century philosopher, economist, and revolutionary socialist whose works have significantly influenced socialist and communist movements worldwide.

Social Stratification

The hierarchical arrangement and classification of individuals or groups in society based on wealth, income, social status, occupation, or other criteria.