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Unformatted text preview: 4. A solution prepared by dissolving 20.0 mg of insulin in water and diluting to a volume of 5.00 mL produces an osmotic pressure of 12.5 mm Hg at 300 K. What is the molecular mass of insulin? 5. Met-enkephlin is one of the so-called endorphins, a class of naturally occurring morphine-like chemicals in the brain. What is the molecular mass of met-enkephalin if 20.0 mL of an aqueous solution containing 15.0 mg of met-enkephlin at 298 produces an osmotic pressure of 24.29 mm Hg?...
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- Fall '08
- Chemistry, 1.0 M, 12.5 mm, 5.00 mL, 7.55 mg