Salt Concentration in the Solution
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My conclusion is that the higher salt concentration in the solution the greater the decrease in mass of the potato will be, the graph I have drawn supports my conclusion. The 10% salt concentration shows that on average the potato loses 2.6% of its overall mass. 20% salt concentration shows a further decrease in mass this time it is an average of 13% overall mass decrease. 30% salt concentration shows an average decrease of 18.8% in overall mass. The 0% salt concentration actually shows a mass increase of an average of 5.4% overall mass if we compare this with the average of 30% salt concentration, which is, an 18.8% overall mass decrease this also supports my conclusion. The graph has a strong negative correlation.
I can explain why there is a mass increase when there is less salt in the solution and why there is a mass decrease when there is a high salt concentration in the solution. I believe it has a great deal to do with osmosis. Osmosis is basically the movement of water from in a cell to outside it or from outside the cell to inside it. The 0% salt concentration and the 5% salt concentration showed a mass increase because there was a higher water concentration outside of the potato cells than