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Unformatted text preview: In class notes for October 26, 2007 o Make sure T is in K o R= 0.08206 Isotonic solution (isoosmotic) o There is a concentrated solution in the cell o If pure water were to be around it, the cell will blow up o If you put it in salt water, (brine is concentrated salt water, it is hypertonic, meaning more concentrated than then cell) the cell will shrivel up o Water is hypotonic ,meaning it is less concentrated than the solution in the cell Osmotic pressure is used for Molecular weight determination o 7.86 mg of B-carotene are dissolved in 10.0mL chloroform to give an osmotic pressure of 26.57 mm Hg at 25C. What is the molecular weight? o = cRT o C= RT o See D o o...
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