Diffusion and osmosis experiment 2: diffusion – concentration


Data Tables and Post-Lab Questions

Table 3: Indicator Reagent Data


Post-Lab Questions

1. Why is it necessary to have positive and negative controls in this experiment?   

2. Draw a diagram of the experimental set­up. Use arrows to depict the movement of each substance in the dialysis bag and the beaker.  

3. Which substance(s) crossed the dialysis membrane? Support your response with data-based evidence

4. Which molecules remained inside of the dialysis bag? 

5. Did all of the molecules diffuse out of the bag into the beaker? Why or why not? 

Need your ASSIGNMENT done? Use our paper writing service to score better and meet your deadline.

Click Here to Make an Order Click Here to Hire a Writer