What Is the PH of a Buffer That Consists of 0.45

question 28

Multiple Choice

What is the pH of a buffer that consists of 0.45 M CH₃COOH and 0.35 M CH₃COONa? K_a = 1.8 × 10^-5

• A) 4.49
• B) 4.64
• C) 4.85
• D) 5.00
• E) 5.52

---

Definitions:

Marginal Cost

The expense incurred from the manufacture of an extra single unit of a product or service.

Opportunity Cost

The expense incurred from not choosing the second-best option available during decision-making.

Marginal Cost

The swell in aggregate expenditure due to the production of an additional unit of a product or service.

Environment Pollution

The contamination of the natural environment by harmful substances or activities, leading to adverse effects on ecosystems and human health.