Factors affecting the movement of water through osmosis Introduction In this I will be investigating what effects the movement of water through osmosis. Osmosis is the diffusion of water. It is the process in which fluids pass through a partially-permeable membrane. It is the movement of water from high water concentration to low water concentration. Plant cells react to osmosis by hypertonic‚ isotonic and hypotonic. Keywords Hypertonic – is when the water outside of the cell is lower than
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Peanuts: Food Quality and Evaluation Introduction Peanuts (Arachis hypogaea) are one of the most versatile crops produced in the world. Also known as ‘groundnuts’‚ they serve as a major ingredient rather than a whole product. Peanuts contain over thirty essential nutrients and phytonutrients. They are a great source of Vitamin E‚ niacin‚ unsaturated fats‚ folate‚ fiber‚ magnesium‚ phosphorus‚ manganese‚ antioxidants‚ and protein. Research has shown that peanuts‚ and most fruits‚ contain
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a safety concerning temporary use of gas cylinders inside the lab area. 2. General rules Everyone in the lab is responsible for working in accordance with the guidelines and safe practices outlined in the “Safety Plan for the Combustion - LAB” and the UNIV. Lab Safety Manual even if some matters are not mentioned or included in this document. 3. Gas Cylinder handling and use 3.1 Identification: • The contents of any compressed gas cylinder shall be clearly identified. • Such identification
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perimeter of a circle‚ runs as follows: Put the sphere of radius R inside a cylinder‚ with the cylinder just touching the equator‚ and cut off at the height of the top and bottom of the sphere. (A cutaway view is in the diagram.) [pic] What is the area of the curved part of the cylinder? 2 Pi R x 2R = 4 Pi R2. This is found by slicing the cylinder surface and rolling it out as a rectangle. Now‚ it is NOT an accident that the cylinder surface is EXACTLY the area of the sphere. Take in small horizontal
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Remove both cylinder head covers. Remove all spark plugs. Remove water hoses between radiator and thermostat housing. Remove fan clutch with fan impeller and fan cowl. RA Removing and installing/replacing toothed shafts of VANOS gear on left and right Issue status (01/2005) Valid only until next CD is issued BMW AG - TIS Copyright 09.05.2008 09:09 Page - 1 - Remove oil lines (1) from cylinder head on cylinder banks 1 to 4 and 5 to 8. Note: The oil lines (1) of cylinder banks 1 to
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rulers and graduated cylinders should always be estimated to one place beyond the smallest scale division that is marked. If the smallest scale division on a ruler is centimeters‚ measurements of length should be estimated to the nearest 0.1 cm. If a ruler is marked in millimeters‚ readings are usually estimated to the nearest 0.2 or 0.5 mm‚ depending on the observer. The same reasoning applies to volume measurements made using a graduated cylinder. A 10-ml graduated cylinder has major scale divisions
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controlled variable(s) are: the liquid used‚ the marble used‚ the distance the marble is dropped‚ the volume (mL) of glycerin in the graduated cylinder. The liquid used is glycerin. The same marble is used throughout the experiment‚ and it has a mass of 4.61g±0.01g. The distance the marble is dropped is 24.70 ±0.05cm. The amount of glycerin in the graduated cylinder is kept at a constant 50±0.5mL. *Note: Glycerol and Glycerin are the same‚ and the nomenclature is interchangeable Materials
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and precision of a graduated cylinder and a pipet EXPERIMENTAL MATERIALS Part A A 50mL graduated cylinder A balance 50.0mL deionized water A rubber policeman Part B A 100mL beaker A 50mL graduated cylinder A volumetric pipet 120.0mL deionized water A thermometer A rubber policeman EXPERIMENTAL METHODS Part A: Density of water 1. An empty‚ dry 50mL graduated cylinder was obtained. 2. The mass of graduated cylinder with using a balance. 3. 10
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by dropping water into the cylinder. Random error such as parallax error would occur. So I took the measurement three times. 0.00001m³ of water is added to the cylinder each time. . The experiment is conducted for volume of water of 0.00001m³‚ 0.00002m³‚ 0.00003m³‚ 0.00004m³‚ 0.00005m³‚ 0.00006m³‚ 0.00007m³‚ 0.00008m³‚ 0.00009m³ and 0.00010m³. Responding Variable Method of controlling Mass of the water At the start of the experiment‚ the mass of the measuring cylinder is measured. 0.00001m³ of water
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be cylinder shaped in order for the ballpoint ink cylinder to fit into the plastic cylinder. c) The plastic cylinder must be in two parts. The two parts are a bottom and a top. The top cylinder’s wedges on the inside must be able to screw around the bottom cylinder’s wedges on the outside. d) The bottom cylinder is 6.5cm long including the wedged area. 5.2cm not including the wedged area. The diameter of the bottom cylinder is .6cm at the top (where wedged area goes into the top cylinder) and
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