Below Is a Diagram Representing a Solvent A(l) in a 1-L

question 148

Multiple Choice

Below is a diagram representing a solvent A(l) in a 1-L beaker, and a solute X dissolved in the solvent. Solvent A has a density of 0.8 g/mL, and a molar mass of 40 g/mol. Solute X has a molar mass of 30 g/mol. Each circle of X represents 1 mol of X. Assume that the solute addition does not significantly change the volume of liquid in the beaker. What is the mass percent of solute X in this solution?

• A) 0.4%
• B) 3%
• C) 12%
• D) 13%
• E) 20%

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Definitions:

Marginal Benefit

The extra utility or satisfaction gained from the utilization or creation of one more unit of a product or service.

Marginal Cost

The increase in total cost that arises from producing one additional unit of a product or service, reflecting changes in variable costs.

Quintiles

A statistical value that divides a data set into five equal parts, often used in economic and social research to assess income distribution or other measurements.

Household Income

The combined gross income of all members of a household, typically measured annually.