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My Chemistry Tutor > Ask Chemistry Homework Questions > College Chemistry > Finding Molecular Weight w/ freezing point depression

Finding Molecular Weight w/ freezing point depression

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Author Topic: Finding Molecular Weight w/ freezing point depression  (Read 601 times)
roksteady22
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« on: February 06, 2009, 09:42:19 PM »
A compound contains 42.9% C, 2.4% H, and 38.1% O by mass. The addition of 3.16 grams of this compound to 75mL of cyclohexane(d=0.779g/mL) gives a solution with a freezing point of 0.0°C. The normal freezing point of cyclohexane is 6.50°C and its freezing point depression constant of 20.2°C/m. What is the molecular formula of the solute?
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kyle1990
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« Reply #1 on: February 08, 2009, 12:41:15 AM »
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hey
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"Theories are nets cast to catch what we call 'the world': to rationalize, to explain, and to master it. We endeavor to make the mesh ever finer and finer."
-Karl Popper
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