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Gummy Bear Lab Report

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We did the gummy bear experiment to strengthen our knowledges of diffusion. We started the experiment by getting two same-colored gummy bears. Measurements were taken of each gummy bear. The gummy bear in the bag was 10 mm thick, 8 mm wide, 20 mm tall, and had a mass of 2,575 grams. The approximate volume was 1600 mm3. As for the gummy bear in water, it was 10 mm thick, 9 mm wide, 19 mm tall, and had a mass of 2.545. The approximate volume was 1710 mm3. After measuring, we put one gummy in a plastic bag, and the other in a cup with 150 ml of water.

When we first put the gummy bear in the water, equilibrium had not been reached, because the concentration of water inside and outside the gummy bear were not balanced. Because of that, osmosis started, and the movement of water molecules began from outside the gummy bear, where there was a high water concentration, to inside the gummy bear, where there was a low water concentration. The water went into the gummy bear because the gummy bear acts as a semi-permeable membrane. Therefore, the water became diffused into the gummy bear, and the gummy bear grew and became more translucent. …show more content…
For the gummy bear in the bag, it was 10 mm thick, 8 mm wide, 19 mm tall, and had a mass of 2.57 grams. The approximate volume was 1,520 mm3. Since the volume decreased 80 mm3, I think that was due to an error in measuring, or excessive touching/squeezing of the gummy bear. For the gummy bear in the water, it was 15 mm thick, 19 mm wide, 38 mm tall, and had a mass of 15.612 grams. The approximate volume was 10,830 mm3, 9,120 mm3 more than before. The increase in volume was due to the water being diffused into the gummy

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