When 200 Grams of an Unknown Compound Are Dissolved in 500

question 42

Multiple Choice

When 20.0 grams of an unknown compound are dissolved in 500. grams of benzene, the freezing point of the resulting solution is 3.77 ^$\circ$ C. The freezing point of pure benzene is 5.444 ^$\circ$ C, and the K_f for benzene is 5.12 ^$\circ$ C/m. What is the molar mass of the unknown compound

• A) 110 g/mol
• B) 120 g/mol
• C) 130 g/mol
• D) 140 g/mol
• E) None of the above

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Definitions:

Cumulative Effect

The total impact of a change in accounting principle on the net income reported in prior periods, if that change had been applied retrospectively.

Accounting Principle

A fundamental guideline or rule that underpins the financial reporting and accounting practices.

Common Shares Outstanding

The total number of shares of a corporation's stock that are currently owned by investors, including those held by institutional investors and company officers.

Net Income

The total earnings of a company after deducting all expenses, including taxes and operating costs, from its total revenue.