A Nonelectrolyte Compound with a Molar Mass of 648 G

question 60

Multiple Choice

A nonelectrolyte compound with a molar mass of 648 g mol^-1 was dissolved in enough water to make 250 mL of solution at 25 °C and produced an osmotic pressure of 27.4 mbar. Calculate the mass of the compound, in g, used to make this solution.

• A) 0.267 g
• B) 0.179 g
• C) 0.106 g
• D) 0.0873 g
• E) 0.236 g

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Definitions:

P(A And B)

The probability that events A and B both occur.

P(A Or B)

The probability that at least one of two events, A or B, will occur.

Probability

A measure of the likelihood that an event will occur, expressed as a number between 0 and 1, where 0 indicates impossibility and 1 indicates certainty.

Independent Events

Two or more events where the occurrence or outcome of one event does not affect the occurrence or outcome of the other.