diffusion lab.docx - Diffusion PRE-LAB QUESTIONS 1 A concentration gradient affects the direction that solutes diffuse Describe how molecules move with

diffusion lab.docx - Diffusion PRE-LAB QUESTIONS 1 A...

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PRE-LAB QUESTIONS 1. A concentration gradient affects the direction that solutes diffuse. Describe how molecules move with respect to concentration. Solute molecules when left to themselves in a solution move from a region of higher concentration to lower concentration. 2. How does the size of a solute affect the rate of diffusion? Consider the size and shape of a molecule in your response. The size of the solute molecule is inversely proportional to the rate of diffusion, bigger and heavier the size of the solute molecule, slower will be the rate of diffusion. The reverse is true for lighter molecules. 3. Does polarity affect the rate of diffusion? Explain your answer using scientific principles. yes, polarity affects the rate of diffusion. The molecule has to pass though cell membrane then at that situation polarity may play an important role towards diffusion of the molecule. Smaller particles move more quickly than larger ones at the same temperature.
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