A 505-Gram Sample of a Compound Is Dissolved in Enough Water

question 38

Multiple Choice

A 5.05-gram sample of a compound is dissolved in enough water to form 100.0 mL of solution.This solution has an osmotic pressure of 25.0 torr at 25°C.If it is assumed that each molecule of the solute dissociates into two particles (in this solvent) ,what is the molar mass of this solute?

• A)9.88 \(\times\) 10¹ g/mol
• B)6.30 \(\times\) 10³ g/mol
• C)3.75 \(\times\) 10³ g/mol
• D)7.51 \(\times\) 10⁴ g/mol
• E)none of these

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