Diffusion Of Egg Lab Report

Egg Lab Conclusion

Diffusion and osmosis were both seen throughout the experiment on dissolving egg shells. Diffusion is the movement of molecules from a high concentration to a low concentration while osmosis is the movement of water across a membrane. What we had done in the lab was let an egg sit in different substances per night over the course of a week to watch the movement of water across the membrane of the egg.

On day one we placed the egg in vinegar and my hypothesis was if we placed the egg in vinegar then the acid will start to deteriorate the shell because of vinegar’s acidic acidic properties. This in fact happened but it was because of diffusion. Diffusion allowed for vinegar to move inside the egg and turn it sort of transparent.

My hypothesis that if the egg is placed in water then the acid will then decay. When we came back we discovered that osmosis had occurred since water had traveled from the outside of the egg and through the membrane of it to a lower concentration of water. We can prove that this happened since the difference of milliliters decreased to 5mL and the mass of the egg went from 90.7g to 88.8g. This change and clear display of osmosis proved my hypothesis mostly correct since the acid did not have the higher balance anymore and the base diffused it with osmosis. What I had got wrong was that I had not recognized what my egg would then look

The hypothesis that I considered was that if the egg is placed in water then the egg will likely break due to osmosis and the amount of sugars and fluid that was now both surrounding and inside the egg (hypertonic). Our egg in fact did not break but osmosis did in fact once more occur. We can prove that osmosis happened since the egg’s mass increased from an initial of 51.5g to 81.4g, showing that the water from the previous night went through the membrane of the egg and therefore increased the mass. Another reason is because of the difference in millileters compared to when the egg diffused. The difference was greater and it went from 150mL to a difference of 37.3mL. and we could see how transparent the egg became. My hypothesis for this final day was otherwise correct except for the fact that the egg did not pop or go through anything