concentration. Osmosis is a type of diffusion. This is the diffusion of water through a selectively permeable membrane from a region of higher water potential to a region of lower water likely. Water potential is the measure of free energy of water in a solution. A living system also contains an active transport to make movement of particles like ions that move against their concentration gradient. The energy source ATP is used during this process to move the particles across the cell membrane. This experiment
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can only be seen with a microscope‚ so you are going to use sticks of potato tissue in solutions that have different concentrations of dissolved substances to observe the effects of osmosis on living tissue. There are three basic relative concentrations of solutions. An isotonic solution has a concentration of dissolved particles equal to that of cells or body tissues; no net water flow occurs. A hypertonic solution has a lower concentration of water (higher concentration of dissolved particles) than
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(As The Editors Of Encyclopædia Britannica say “Paper chromatography‚ technique for separating dissolved chemical substances by taking advantage of their different rates of migration across sheets of paper. The method consists of applying the test solution or sample as a spot near one corner of a sheet of filter paper. The paper is initially impregnated with some suitable solvent to create a stationary liquid phase. An edge of the paper close to the spot is then immersed in another solvent in which
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coloring. The purpose of this laboratory is to demonstrate in which solution the LifeSaver dissolves faster within five minutes. Materials Water Salt Baking Soda Regular LifeSaver hard candy Cups Watch settled for 5 minutes Observations The Lifesavers are round shape‚ purple color‚ solid and hard and 2cm size. Water is clear at room temperature. Salt and Baking Soda are in it solid state with power appearance. Question Which solution will dissolve the LifeSaver the most within five minutes? Hypothesis
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Lab : Iodine-starch Clock Reaction Pre-lab: Before the lab was conducted‚ the concentration of the Iodate ions to be in the mixture made by dissolving specific volumes of solution A with a constant concentration and water was calculated using the dissolution formula: C1V1 = C2V2 Sample Calculation 1: Concentration of the Iodate ions: For mixture 1: C2 = C1V1/ V2 = (0.020mol/L) x (0.003L)/(0.01L) = 0.006mol/L The same calculations were used in the calculating of the
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While questioning Miss Sutherland‚ Sherlock Homes and Dr. Watson found out the following information. Miss Sutherland was living at home with her mother and Mr. Windibank her stepfather. Her Uncle Ned had died; and as a result of his will‚ she received an income of 100 pounds a year. She generously decided to give it to her parents as long as she lived in their house. She did not want to be a burden to them. Besides‚ she did some typing and earned enough for her humble needs. Her eyesight was poor
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Experiment 1: Mixtures Aim: To develop an understanding of different types of mixtures including solutions and to examine the different solubilities of some solutes in two solvents: water and ethanol Procedure: Refer to Experiments Book Pg 13 Results: Part A- Mixture Observations Classifications 1 100% Orange Juice There were suspended pulp in the juice Heterogeneous Mixture 2 100% Apple Juice Clear solution Homogeneous Mixture 3 Solder Uniform mixture Homogeneous Mixture 4 Fruit Cake Chunks of raisins
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An isotonic solution has the same osmolarity as a tissue. A hypertonic solution has a higher osmolarity and a hypotonic solution has a lower osmolarity. If samples of a tissue are bathed in hypertonic and hypotonic solutions‚ and measurements are taken to find out whether water enters or leaves the tissue‚ it is possible to deduce what concentration of solution would be isotonic and therefore predict the results of osmosis in different
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called hypotonic solution and hypertonic solution. Hypothesis: My Hypothesis for diffusion that the starch solution will be hypotonic and diffuse into potassium iodide (IkI). Hypothesis for osmosis is that each of the individual dialysis bags will increase because of the different concentration of the solutions. Which makes this and hypotonic experiment. Hypothesis for this experiment is that each of the four cylinders of potato will decrease in mass‚ because of the solution/concentration
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moving in one direction equals to the amount of molecules moving in the other direction. There are three types of solutions to diffusion: isotonic‚ hypertonic‚ or hypotonic. When the solutions have the same concentration of solutes‚ they are isotonic. When the solutions differ in their solute concentration‚ the solution with more solute is hypertonic to the other solution. The solution that has less solute is hypotonic
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