What Volume of Ethanol (Density = 0

question 50

Multiple Choice

What volume of ethanol (density = 0.7893 g/cm³) should be added to 450.mL of water in order to have a solution that freezes at -15.0°C? (For water, K_f = 1.86 °C/m.)

• A)371 mL
• B)470 mL
• C)212 mL
• D)132 mL
• E)167 mL

---

Definitions:

Katz's Skills Model

A theory that identifies three fundamental competencies (technical, human, and conceptual skills) necessary for successful management at different organizational levels.

Blake And Mouton's

Refers to the Managerial Grid Model developed by Robert Blake and Jane Mouton, which argues that the most effective managers demonstrate high concern for both people and production.

Burns's Transactional Leadership

A leadership model proposed by James MacGregor Burns where leaders promote compliance among followers through a system of rewards and punishments.

Authentic Leadership

A leadership style that emphasizes the importance of leaders being genuine, transparent, and ethical, fostering trust and legitimacy.