The Indicator Propyl Red Has K_a = 3

question 77

Multiple Choice

The indicator propyl red has K_a = 3.3 × 10^-6. What would be the approximate pH range over which it would change color?

• A) 3.5 - 5.5
• B) 4.5 - 6.5
• C) 5.5 - 7.5
• D) 6.5 - 8.5
• E) 7.5 - 9.5

---

Definitions:

Net Operating Income

A company's income after operating expenses are subtracted but before deducting interest and taxes, reflecting the profitability from core operations.

Planning Budget

A budget created for a specific level of activity, it helps in planning and controlling costs based on projected operational activities.

Net Operating Income

The profit a company makes from its normal business operations, calculated by subtracting operating expenses from operating revenues.

Planning Budget

An estimate of future income and expenditures that is used as a guideline for financial planning and decision-making.