A 1250 ML Sample of an Aqueous Solution at 25 °C

question 75

Multiple Choice

A 125.0 mL sample of an aqueous solution at 25 °C contains 29.4 mg of an unknown nonelectrolyte compound. If the solution has an osmotic pressure of 24.4 mbar, what is the molar mass of the unknown compound?

• A) 116 g mol^-1
• B) 281 g mol^-1
• C) 239 g mol^-1
• D) 98.6 g mol^-1
• E) 311 g mol^-1

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