A Solution Is Prepared by Dissolving 7

question 42

Multiple Choice

A solution is prepared by dissolving 7.00 g of glycerin (C₃H₈O₃) in 201 g of ethanol (C₂H₅OH) . The freezing point of the solution is __________°C. The freezing point of pure ethanol is -114.6°C at 1 atm. The molal-freezing-point-depression constant (K_f) for ethanol is 1.99°C/m. The molar masses of glycerin and of ethanol are 92.1 g/mol and 46.1 g/mol, respectively.

• A)-121.3
• B)0.752
• C)-107.9
• D)-113.8
• E)-115.4

Understand the concept of accrued interest and its calculation for bond investments.

Calculate total purchase cost of bonds including premium, commission, and accrued interest.

Compute the sale proceeds of a bond including accrued interest and commission deductions.

Determine the number of days for which accrued interest is calculated in bond transactions.

---

Definitions:

Gini Index

A measure of income inequality or wealth distribution within a nation, ranging from 0 to 1, with 0 representing perfect equality and 1 representing perfect inequality.

Inequality

The unequal distribution of resources, opportunities, and treatment among people based on various factors such as wealth, income, race, gender, and education.

Nations Worldwide

Refers to all sovereign states across the globe, each with its own government and defined territory.

International Trade

The exchange of goods, services, and capital between countries or territories, contributing to global economic integration.