What Mass of KClO₃ Must Be Decomposed to Produce 126

question 62

Multiple Choice

What mass of KClO₃ must be decomposed to produce 126 L of oxygen gas at 133°C and 0.880 atm? (The other reaction product is solid KCl.) (R = 0.08206 L • atm/K • mol)

• A) 24.6 g
• B) 70.8 g
• C) 272 g
• D) 408 g
• E) 612 g

---

Definitions:

Multidirectional

Refers to the concept that human characteristics change in every direction throughout the lifespan, encompassing growth and decline.

Contextual

Relating to or depending on the context or surrounding environment in which something exists or occurs.

Cross-cultural

Relating to, involving, or comparing two or more different cultures or cultural areas.

Perceptual Abilities

The capacity to interpret or give meaning to different types of sensory information, such as visual or auditory inputs.