A 150 Mg Sample of a Protein Was Dissolved in Water

question 63

Multiple Choice

A 15.0 mg sample of a protein was dissolved in water to produce 5.00 mL of solution at 25.1°C. The osmotic pressure of this solution was measured and found to be 6.50 torr. What is the molar mass of this protein?

• A) 427 g/mol
• B) 941 g/mol
• C) 8,580 g/mol
• D) 4,270 g/mol
• E) 561 g/mol

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Definitions:

Positive Economics

The branch of economics that concerns itself with describing and explaining economic phenomena as they are, not as they should be.

Normative Economics

An area of economics that analyzes outcomes based on value judgments about what is desirable or what ought to be, rather than what merely is.

Supply and Demand

Fundamental economic concepts that describe how the availability of products (supply) and the desire for them (demand) determine prices.

Scarce

Describes resources or goods that are limited in availability and cannot satisfy all the wants and needs of consumers.