instrument of learning a quantitative method of analysis‚ i.e.‚ of the gravimetric analysis. This type of analysis‚ which makes use of the weight of the samples was used for the experiment and required the precipitation of our analyte‚ SO4-2‚ and its filtration as a BaSO4 precipitate so as for weighing it. The weight of the SO4-2 was determined through the data gathered in the experiment‚ particularly from finding the weight of the BaSO4 precipitate. This was taken into the proportion of the weight sample
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Subject Matter: Mixture Reference: Science for Daily Use 4 A. Science Concept A mixture is a combination of two or more different substances where their individual characteristics are maintained. Ways of separating mixtures are: evaporation‚ filtration‚ sieving‚ sifting‚ straining‚ winnowing and through the use of magnets. B. Processes Stressed- Observing‚ and Describing C. Materials: III. Procedure Teachers Activity Pupils Activity a. Lesson Proper 1. Motivation:
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Litres Capacity of RO: 1000 Lph Schematic Diagram: Source BWT RWT Micron filters MGF ACF RO Unit Sump Filtration sump UVW Storage tank Transfer tank Process: It is a batch process divided into three stages‚ Initial stage: The sump is filled with half of the backwash water of DMF‚ ACF and half of RO reject water through filtration sump‚ and this water is pumped to raw water tank. Second stage: The sump is filled RO reject water‚ and this water is pumped to
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M01_ZAO2177_01_SE_CH01.QXD 3/4/11 1:36 AM Page 13 R E V I E W S H E E T EXERCISE NAME_________________________________ LAB TIME/DATE ________________________ A C T I V I T Y 1 1 Cell Transport Mechanisms and Permeability Simulating Dialysis (Simple Diffusion) 1. Describe two variables that affect the rate of diffusion. ______________________________________________________ __________________________________________________________________________________________________
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Distillation‚ Filtration‚ and Chromatography are known alternatives to separate the
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concentration of salts to an area of greater concentration (Campbell). To maintain the proper balance of salts and water in the aquatic environment fish‚ and all vertebrates‚ evolved to utilize a very specialized organ to solve this problem: The Glomerular/ Vertebrate Kidney (Washinton). In early evolving species‚ fish were beginning to live in freshwater systems after entire millennia of living in the oceans (Washington). This meant that their cells had a higher concentration of salts than the environment
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Study of Water Purification Methods Water is the most essential component of life on Earth. In the United States‚ the average person uses about 75 gallons per day of freshwater. Most of this water is pre-treated in facilities and comes out of the tap clean and ready for drinking‚ a fact many take for granted. If you are camping and hiking you won’t always have access to this source of healthy‚ potable water. Unfortunately‚ many water sources in the wilderness include microorganisms‚ bacteria
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determined to be 7.55%‚ 8.06%‚ 6.91%‚ 5.10% and 4.72%. Introduction: This is a two week experiment involving transformation of matter where we will investigate the synthesis of the dye indigo‚ which will be made‚ isolated by the process of vacuum filtration and then evaluated. Indigo is the name given to an organic molecule with an intense blue color. It has been used to dye cotton and wool fabric‚ it is commonly known as the source of the color in blue jeans. The synthesis of new chemicals involves
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interior and exterior of the cell. The second type is active processes which use energy known as ATP to power the transport. There are two main types of passive processes called diffusion and filtration. This can be split into different types such as simple diffisuion‚ facilitated diffusion‚ osmosis and filtration. The objective of these experiments is to provide information on the passage of solutes and water through semi permeable membranes and relate them back to the study of actual living membranes
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To prevent the previously discussed risks related to the equipment and substances used in the synthesis reaction‚ safety procedures were discussed with the teacher‚ the fume cupboard was used‚ hands were washed‚ correct disposal procedures were followed‚ Disinfectant was used to wipe down benches‚ no flammable or loose clothing was worn‚ long hair was tied back‚ no naked flames were used‚ the safety shower and eye bath was available‚ first aid facilities were available‚ required spill management
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