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Osmosis and Diffusion on Different Concentrations of Sodium Chloride on a de-Shelled Chicken

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Osmosis and Diffusion on Different Concentrations of Sodium Chloride on a de-Shelled Chicken
1. Provide the aim and background information

2.1. Diffusion is the spontaneous kinetic movement by which molecules move from an area of a high concentration to an area of low concentration. Diffusion continues until it reaches equilibrium. Osmosis is similar to Diffusion but it’s the process in which water moves across a semi-permeable membrane and goes to the higher concentration of solute.1

2.2. Important factors to Osmosis and Diffusion include Temperature, Concentration and Surface area to volume ratio. Temperature can affect the rate in which a solute dissolves in a solution, higher temperature faster rate of Osmosis. This is caused by the molecules movements being faster in higher temperatures. Concentrations are important as they affect the movement of solute within a solvent, the lower the concentration the faster osmosis will occur in that solvent. Surface area to volume ratio affects the rate which molecules move, the larger a surface area the move space for molecules to move easily across. The smaller the area the more restricted the molecules movements are the slower rate of movement.1

2.3. The aim of this investigation is to evaluate the process of Osmosis and Diffusion on different concentrations of sodium chloride on a de-shelled chicken egg over a period of 24 hours.

2.4. My hypothesis relating to this investigation is that the de-shelled eggs in different sodium chloride solutions will absorb the water through the process of osmosis which will cause the eggs to increase both their weight and size.

2.5. The outcome varied differently than I had hypothesised the eggs did gain weight and size but the results differed throughout the different percentages of solution. The eggs in the highest concentration of solution had very little increases in size and weight when compared to the ones in the lower solutions. This is because the eggs concentration of solutes is similar to 25% sodium chloride so the rate

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