Which Statement Is NOT Correct? Determination of the Molar Mass

question 72

Multiple Choice

Which statement is NOT correct? Determination of the molar mass of an unknown sample by an osmotic pressure measurement requires that

• A)the solute dissolved in the solution is pure.
• B)the solute is a nonelectrolyte.
• C)the molecules of the solute do not pass through the semipermeable membrane.
• D)the mass of the solute dissolved in the solution is known in advance.
• E)the molar concentration of the solute in the solution is known in advance.

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Definitions:

Affect

The observable expression of emotions, which can influence someone's experience and communication.

Except

Excluding or with the exclusion of; used to specify something as not included in a category or group.

By

A preposition indicating agency, means, or location; used to specify the person or thing that performs an action or through which a result is obtained.

Quite

Used as an adverb to indicate a considerable degree or fully; extremely.