A Solution Is Prepared by Dissolving 4

question 34

Multiple Choice

A solution is prepared by dissolving 4.78 g of an unknown nonelectrolyte in enough water to make 375 mL of solution.The osmotic pressure of the solution is 1.33 atm at 27°C.What is the molar mass of the solute? (R = 0.0821 L⋅atm/mol⋅K)

• A) 0.0203 g/mol
• B) 21.2 g/mol
• C) 49.4 g/mol
• D) 96.8 g/mol
• E) 236 g/mol

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Definitions:

Time Costs

The opportunity costs associated with the time spent on an activity instead of other, potentially more valuable, activities.

Transaction Costs

Expenses incurred in making an economic exchange, including search, bargaining, and enforcement of contracts.

Volume Of Trade

The total quantity of shares or contracts traded for a specified financial instrument or market within a specified period.

Gains From Trade

The increase in utility or welfare that countries or individuals obtain by engaging in voluntary exchange of goods and services.