Reverse Osmosis Application Assignment Osmosis is the dissemination of water atoms through a semi-permeable layer from areas of high to low concentration in the direction that tends to equalize the solute concentration on both sides. In real life osmosis is found in roots of plants retain water from the dirt‚ and kidneys taking water from blood [5]. Reverse osmosis is the removal of solute from water by applying pressure to the water and moving the solution through a semi-permeable membrane. It is
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2. Explain your graph : 3. Define simple diffusion: 4. Define osmosis: Osmosis can be defined as the movement of solvent molecules across a semipermeable or selectively permeable membrane ‚from a region of lower concentration of the solute to that of a higher concentration till equilibrium is attained. 5. What is the change in the level of molasses in 10 minutes? 6. What is the change in the level of molasses in 30 minutes? 7. What force is responsible for the movement of substances
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solution is compared with color of standard solutions in different concentrations. Measuring amount of substance in solution by helping intensity of transmittance light from solution is called photometry. Devices that used for this method is called photometer. This kind of devices have filter to adjust wavelength of light. If the device has a prism to do this‚ it is called spectrophotometer. In photometric measurements‚ concentration of colorless solutions can be measured(by using UV lights).[2] Spectrophotometer
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the movement of any kind of molecule‚ osmosis is only about the movement of water molecules. To show this diffusion I will be using potato discs‚ of the same size and mass‚ in different concentrations of sugar solution to find out whether the mass of the discs increases or decreases depending on the concentration. I predict that when the sugar solution is 0% the mass will increase as there is less sugar in the water than in the potato. The water will then travel through a partly permeable membrane
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be determined. However‚ the most crucial part of structure determination is the crystallization of a protein. A protein can be difficult to crystallize because an optimal environment must be found by adjusting temperature‚ pH‚ ion concentrations‚ and even concentration of the protein itself. To understand this process‚ lysozyme‚ a well-studied protein‚ was crystallized in a total of twelve differing environments. The amount of two different solutes‚ NaCl and polyethylene glycol (PEG)‚ were adjusted
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|2.27 x 10-4 | |Trial 4 |2.26 x 10-4 | By finding the moles of EDTA used‚ the concentrations of Ca2+ and SO42- can be calculated. By finding the molarities of the two‚ the Ksp can also be calculated and the result are shown on Table 1. below Table 1. Ksp Using Molarities When comparing these values to the actual Ksp of 3.14 x 10-5
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Dahle Lab 1: Diffusion & Osmosis 9/16/14-9/19/14; Jessica Bullock‚ Andrew Buchholz‚ Kristamae Masiclat TITLE: Different Ways to Express Diffusion and Osmosis INTRODUCTION: Diffusion is the spontaneous movement of a substance down its concentration gradient‚ from a region where it is more concentrated to a region where it is less concentrated. Osmosis is the diffusion of water across a selectively permeable membrane. The objective of this lab is to observe the different effects of diffusion
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Diffusion and Osmosis Introduction Tonicity refers to the concentration of solutes in a solution (Lab 6-7). There are three stages of tonicity: Isotonic‚ hypertonic and hypotonic. Four unknown solutions were given and labeled as followed: Solution A‚ Solution B‚ Solution C‚ and Solution D. Since potato cells were used for this type of experiment‚ in an Isotonic solution the solute and water concentration are the same as inside the cell in which the isotonic solution contains 0.9% NaCl. In other
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University of Wisconsin recommends that if stinging or burning occurs‚ than individuals should cut the amount of salt in half for the solution and decrease frequency of use to every other day. How does that affect the concentration of the solution? When salt is decreased the concentration of the solution measured will also be decreased. This would also decrease the burning and stinging. When the solution is decreased to every other day it could prevent acidosis. 4. Compare and contrast the solutions
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in the oven at 150 degree Celsius for about half an hour and cooled in the desiccator‚ and weighed as barium sulphate and the percentage of sulphate was calculated from the weight of barium sulphate. The Molarity of sulphate= 0.004269 M and the concentration of sulphate in g/L= 0.4098g/L. The weight of barium sulphate was calculated to be 0.0249g. There were also no hiccups during the experiment. (133 words) OBJECTIVE To determine the amount of sulphate by gravimetric analysis. Students can also
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