A Solution Is Prepared by Dissolving 5

question 37

Multiple Choice

A solution is prepared by dissolving 5.00 g of an unknown molecular solid in water to make 1.00 L of solution.The osmotic pressure of the solution is 1.61 atm at 25°C.What is the molar mass of the solute? (R = 0.0821 L.atm/mol.K)

• A) 6.37 g/mol
• B) 58.44 g/mol
• C) 76.0 g/mol
• D) 102 g/mol
• E) 180.2 g/mol

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Definitions:

Systematically

Done or conducted using a thorough, efficient, and methodical approach.

Variable

An element, feature, or factor that is liable to vary or change, often used in scientific research to measure and analyze differences.

Identical

Exactly the same, alike in every way. This term is often used to describe objects, twins, or situations that are indistinguishable from each other.

Statistically Significant

A term used to denote a result that is unlikely to have occurred by chance alone, according to a predetermined threshold of probability.