[Osmosis Practical Report] Abstract: | The purpose of this investigation is to see if the concentration of Sodium chloride (NaCl) solution will affect the mass of the potato cylinder hence the rate of osmosis. This can be done by placing 5‚ identical in length (3cm) but different in weight‚ tubes of potato in 5 different beakers. Each containing an altered NaCl concentration. The concentrations used in this experiment were‚ 0%‚ 2%‚ 10%‚ 15%‚ and 26%. Potatoes were weighed prior to immersion
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Cake With Ampalaya and Sweet Potato CHAPTER I Introduction BACKGROUND OF THE STUDY One of the most problems today that confront the country is malnutrition; one of the causes of malnutrition is eating foods that have less nutritional value like junk foods. Thiss malnutrition hinders the realization of the dream of a healthy and a happy community and the attainment of quality education. Because of these‚ the researcher attempt for an innovative way of preparing a food which is inexpensive
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resort. He might have been talented but he needed to work on his potato fries just a little. The Birth of Potato Chips George Crum was the first African American/Native American to accidentally create the first batch of potato chips. The invention sort of has a silly story behind it. It all started 1853‚ when George Crum was working as a chef in a New York resort. A customer complained that George’s potato fries where too thick. George got pretty angry because of that
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salinity of solutions has on the process of osmosis and net weight gain/ loss by potato cells. This would be done by using similar size potato cubes and covering them with different concentrations of saline solutions (0.5% and 2.0%) in beakers then measuring the change in weight of the potato cubes. If the salinity of the solution is high then the weight of the potato cubes will decrease. Materials • 9 X 2cm2 potato cubes • 3 X
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work in hot and dangerous tunnels that miners refused to go in no matter the amount of copper in contained. The POWs had barely anything to eat‚ boiled sweet potato vines and some rice. Diseases like dysentery‚ pellagra‚ beriberi‚ ulcers‚ pneumonia‚ diphtheria took over most of the Japanese POWs‚ leading to the guards forcing them to start digging their own grave. Some POWs even had to dig underground tunnels and fox holes for the Japanese to hid in during fighting. Red Cross flew packages of food to
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Hypothesis: If the potato is acidic‚ it will react with the H2O2 more than it will with the raw‚ plain potato because the acid will denature the enzyme faster. The manipulated/independent variable is the raw‚ plain potato while the responding/dependent variable is the other types of potatoes used in the experiment. Materials: Test tube rack 4 test tubes Graduated cylinder Beaker 10-15 mL of hydrogen peroxide Potatoes Raw potato Potato soaked in baking soda Potato soaked in baking soda
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change in weight of potato tubers‚ this was conducted in order to explore the process of diffusion and osmosis and more importantly to investigate the question of “Does different concentrations of sucrose solutions have an effect on the final weight for the potato tubers?” In this experiment we estimated the osmolarity of potato tuber cores by submersing different potato cores into sucrose solutions of 0.0-0.6M‚ and weighing the potato. The results showed the weight of the potato tubers had the highest
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duration of 24 hours in varying concentration levels (2%‚ 5%‚ 10%‚ 20% and 25%) of sodium chloride (table salt)? HYPOTHESIS Solanum tuberosum L. final masses will decline as the concentration (2%‚ 5%‚ 10%‚ 20% and 25%) of sodium chloride increases. Potato slices placed in distilled water will have higher mass percentage due to the cells becoming turgid. BACKGROUND INFORMATION Diffusion is the movement of molecules from a hypertonic (high concentration solute) to the hypotonic (low concentration
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molecules are randomly distributed throughout an object‚ with all areas having an equal concentration.For this particular investigation I think that the lower the concentration of the salt solution in the test tube‚ the larger the increase in mass of the potato chip will be. This is because the water molecules pass from a high concentration. Therefore‚ I believe that the chips that are in the tubes containing a higher concentration of water than salt will have a larger mass than chips in tubes with higher
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wrote “It is remarkable that the same plant should be found on the sterile mountains of Central Chile‚ where a drop of rain does not fall for more than six months‚ and within the damp forests of the southern islands” (Chapaman). He was speaking of the potato‚ and its ability to adapt to a variety of climates‚ from the semiarid to the tropical wet. Potatoes also have high nutritional value. They supply every vitamin and mineral that a body needs except for vitamin A‚ vitamin D‚ and calcium (Chapaman).
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