SSN COLLEGE OF ENGINEERING DEPARTMENT OF CHEMICAL ENGINEERING V Semester – CH 2307 TECHNICAL ANALYSIS LAB -2010 INDEX SHEET CYCLE ONE Date of Condn. Date of Subn. Sign 1 Estimation of COD of the given sample of water. 2 Estimation of Manganese in the given pyrolusite ore. 3 Estimation of Magnesium by EDTA method. 4 Estimation of purity of drug using pH meter. 5 Estimation of Ammonia in ammonium salts. 6 Polarimetric estimation of sugar
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Osmosis using potato cores and sucrose solution 1.0 Abstract This experiment’s ultimate goal is to find the water potential of the potato cell. This was achieved through placing potato cores in different concentrations of sucrose (0.2%‚ 0.4%‚ 0.6%‚ 0.8%‚ 1.0%‚ 2.0%‚ 3.0% and 4.0%) solution and to observe how much water was gained or lost through osmosis to reach a prediction of the concentration within the potato cell. The results displayed that the concentration of sucrose within the potato cell is
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results we got shows that osmosis occurred in this experiment. In 0.0 mols of sucrose the mass of potato has increased so there has been diffusion of water from 0.0 mols of sucrose which is the lower concentration to 3.71 grams of potato which is the higher concentration. Also in 1.0 mols of sucrose the mass of potato has decreased and it should decrease when there is osmosis present because in this case 1.0 mols of sucrose is the higher concentration and the 3.58 grams of potato is the lower concentration
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fermentation of yeast. The types of sugar being used in the experiment is glucose‚ sucrose‚ and lactose. Glucose is a monosaccharide and is used in the first step of glycolysis in order to help create pyruvates‚ which are then used to create ethanol as long as there is no mitochondria or oxygen present. Sucrose is a disaccharide‚ commonly referred to as sugar‚ it’s used worldwide‚ and mainly harvested from sugarcanes. Sucrose is composed of two
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(glucose/fructose/galactose) bonded to a molecule of sucrose. The kestoses (1-‚ 6- and neo-) are composed of a fructose molecule attached to a sucrose molecule (Figure 6). The kestoses (1-kestose‚ 6-kestose and neokestose) are formed by the addition of a fructosyl residue to a sucrose molecule. The emergence of the different kestose isomers arises from the substitution of the fructosyl residue on any one of the three primary alcohol groups on the sucrose molecule (Suzuki & Chatterton‚ 1993). The 6-kestose
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foresee the effect of solute concentration on osmosis. In order to achieve these objectives‚ we had to fill the dialysis tubing with either water‚ or different amounts of sucrose. We then tied off the tubes and put them into beakers of distilled water to see how the color changed in the bag/beaker. The result was that the more sucrose in the bag‚ the greater the final mass. Introduction: The reasons for doing this lab are so that we can learn about osmosis with a model similar to a cell and so that
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The purpose of the laboratory investigation was to observe the diffusion of water across a semi-permeable membrane. In this lab‚ dialysis tubing was used to represent the semi-permeable cell membrane. Three dialysis tubes were prepared with 5% sucrose solution and were soaked in solutions of different concentrations. The diffusion of water across a semi-permeable membrane is called osmosis. When water diffuses‚ the water molecules move from a hypotonic environment to a hypertonic environment
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invertase specifically catalyzes the reaction of the conversion of sucrose to its individual carbohydrates glucose and fructose. It does not catalyse the reaction of maltose to 2 glucose or lactose to galactose. In this experiment‚ titrimetric and spectrophotometric methods were used to determine the specificity of invertase by determining the amount of glucose converted from the given disaccharides. The results show that sucrose yielded the least amount of glucose and got the lowest absorbance reading
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unknown sucrose solutions. First I would pour an equal volume of each solution into beakers labeled A‚ B‚ C‚ and D. I would also have a beaker of the same amount of distilled water to serve as a control for the experiment. Then I would obtain several baby carrots‚ 4 per beaker. I would mass the groups of 4 potatoes before placing them in their respective beakers of solution. potatoes do have semipermeable cell membranes (water should be able to pass‚ but not necessarily the larger sucrose)‚ but in
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boiled water and sugar‚ the type of candy formed is dependent on the presence of sugar crystal formation and its size. At a molecular level‚ sucrose molecules form a small crystal that is orderly arranged in three dimensions.These molecules are attracted and held together by intermolecular forces. However‚ when water is added to the granulated sugar‚ the sucrose molecules begin to dissociate from one another due to the attraction of intermolecular forces
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