A 255 ML Round- Bottom Flask Is Weighed and Found

question 18

Multiple Choice

A 255 mL round- bottom flask is weighed and found to have a mass of 114.85 g A few milliliters of an easily vaporized liquid are added to the flask and the flask is immersed in a boiling water bath. All of the liquid vaporizes at the boiling temperature of water, filling the flask with vapor. When all of the liquid has vaporized, the flask is removed from the bath, cooled, dried, and reweighed. The new mass of the flask and the condensed vapor is 115.23g Which of the following compounds could the liquid be? (Assume the ambient pressure is 1 atm.)

• A) C₂H₅OH
• B) C₄H₉OH
• C) C₃H₇OH
• D) C₄H₁₀
• E) C₂H₆

Distinguish between social, moderate, and problematic alcohol use.

Understand the factors influencing blood alcohol levels (BAL).

Grasp the concept of alcohol as a "dirty" compound and its effects on neurotransmitters.

Acknowledge the global prevalence and trends of alcohol consumption.

---

Definitions:

Borrowing Terms

Conditions and agreements under which a loan is made, including interest rate, repayment schedule, and collateral requirements.

Dividends

A portion of a company's earnings distributed to its shareholders, often expressed as a fixed amount per share.

IFRS

International Financial Reporting Standards, a set of global accounting standards that guide the financial reporting of public companies.

Statement of Cash Flows

A financial documentation that illustrates the effect of changes in balance sheet accounts and profit on cash and cash equivalents, dividing the analysis into categories of operating, investing, and financing activities.