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AP Lab #1

AP Lab #1. Osmosis & Diffusion. Lab #1 Diffusion Osmosis. Dialysis Tubing is The tubing will allow some molecules to pass through, and others not. Determined by size. selectively permeable. Lab #1 Diffusion Osmosis. Which way will the water flow?. Explain each…. Hypotonic? Hypertonic?.

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AP Lab #1

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  1. APLab #1 Osmosis & Diffusion

  2. Lab #1 Diffusion Osmosis • Dialysis Tubing is • The tubing will allow some molecules to pass through, and others not. Determined by size selectively permeable

  3. Lab #1 Diffusion Osmosis • Which way will the water flow?

  4. Explain each…. • Hypotonic? • Hypertonic?

  5. Once you know the solute concentration, you can calculate solute potential using the following formula:Solute potential (s) = –iCRT • i = the number of particles the molecule will make in water • ex. NaCl = 2 • ex. Sucrose or Glucose = 1 • C = molar concentration (from your experimental data graph) • R = pressure constant = 0.0831 L bar/mole K • T - temp in degrees Kelvin = 273 + oC of solution

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