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Cranberry Juice Affect The Osmosis Of Chipped Potatoes

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Analysis of Data:
Through further analysis of the data, the hypothesis which was stated at first was supported. The hypothesis was, the concentration of the cranberry juice affected the osmosis of the chipped potatoes. During this experiment, the main aim was to explore what are the effects of different %’s of the concentration of cranberry juice on chipped potatoes and explaining this effect through osmosis terminology. The trend can be analysed, showing that as the (%) Concentration of cranberry juice increases the average % change in mass decreases. In the graph displayed above it can be shown that the net loss in the cell was due to osmosis. Therefore, meaning that it was a hypotonic solution, as there was a greater net movement of water into the cell. The results shown above evidently support the hypothesis stated. …show more content…

Whereas when the concentration is in the range of 40-100% there was a hypertonic solution which occurred meaning a great net movement of water out of the cell. It is evident to know which solution has occurred at what point in time of the experiment, as the average % change in mass data provides that proof. Another aspect in the results which provides conclusive and reliable information is the point where the line of best fit crosses the axis, which shows the approximate concentration of the solute. In the results table the coefficient of variation was calculated which showed the amount of the scatter of the results. The reason for the scatter in the results was due to different potato chips having different amounts of water and the drying process not being conducted consistently for all potato

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Which is why I believe I found that most of the points on my graph were spread over a wide range. Also, the experiment required more than one piece of potato and each potato might have had more water in it or less thus affecting the mass of potato. My partner and I also had used different potatoes one can deduce that these potatoes were of different qualities. Not to mention, another factor which played a big role in affecting the outcome of my results was that the grape juice when placing it into the test tube might have not been distributed equally around the potato cylinder as I found it to be sticky and would take time to slide down when touching the test tube. So, each potato cylinders may have contained different amount of sugar thus affecting the rate of osmosis.

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