A 100 L Flask at 318 K Contains a Mixture of of Ar

question 31

Multiple Choice

A 10.0 L flask at 318 K contains a mixture of Ar and CH₄ with a total pressure of 1.040 atm.If the mole fraction of Ar is 0.715,what is the mass percent of Ar?

• A) 13.8%
• B) 68.8%
• C) 71.5%
• D) 82.9%
• E) 86.2%

---

Definitions:

Nonbiological Parenting

Raising a child without a genetic relation, often through adoption, step-parenting, or fostering.

Intergenerational Relationships

Social, familial, or professional connections between people of different generations, often involving the sharing of experiences, knowledge, and values.

Adult Children

Adults who are considered from a parent's perspective, often in discussions about family dynamics and relationships.

Middle-aged

Pertains to individuals who are in the mid-point of their lives, typically considered between the ages of 40 and 65.