the type of bonds which are present in each solid. Various substances (paraffin wax‚ sucrose‚ sodium chloride‚ tin‚ and silicon dioxide) were experimented and identified with tests for hardness‚ solubility‚ conductivity‚ and the time for the solid to melt with a candle and Bunsen burner. The substances were identified according to their properties. Paraffin wax was identified as a non-polar covalent solid‚ sucrose is a polar covalent‚ sodium chloride was acknowledged as an ionic solid‚ tin is a metallic
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the compound we want must be separated from its other natural components‚ which can be done by manipulating physical and chemical properties. Panacetin contains sucrose‚ aspirin and an unknown which can be acetanilide or phenacetin in which phenacetin was created and weighed. Introduction In this lab our basic goal was to make the sucrose‚ aspirin and unknown that are formed from pharmaceutical panacetin. In doing this lab we used NaOH and diethyl either‚ along with water. We used a centrifuge
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An investigation how sugar solutions of different concentrations affect osmosis. Research Osmosis is the diffusion of water across a partially permeable membrane from a dilute solution to one of a higher concentration. If a solution has a low concentration then the amount of (in the case of my investigation) sugar‚ the solute‚ will be low and the solution will be weak. If there is high amount of sugar then the solution will be concentrated (have a high concentration). When two solutions
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fill with water‚ Which causes the celery to become harder. 14.Which types of molecules can pass through a lipid bilayer most readily? Water‚ and small molecules 15.Animal cells are permeable to water and urea but NOT to sucrose. The inside of a cell contains 1 M sucrose and 1 M urea and the outside 1 M
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to be equal‚ causing equilibrium and a stop to net water movement. The goal for a recent lab was to test whether cubes of potato would gain or lose weight depending on the amount of molar concentration of sucrose they soaked in. Solutions made of different molar concentrations of the solute sucrose were prepared before this lab. Potato cubes were weighed and recorded as the initial mass in the data. Four cubes of potato were placed into 100 mL of each solution and let stand overnight. The cubes were
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concentration gradient across a cell membrane. The solute (dissolved substance) concentration affects the rate of osmosis causing it either to speed the process up or slow it down. Based on this‚ how does different concentrations of sucrose affect the rate of osmosis? If sucrose concentration increases in the selectivity-permeable baggies‚ then the rate of osmosis will increase. MATERIALS AND METHODS The start of the experiment consisted of filling up four beakers with de-ionized water to 150 ml.
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The Reason why yeast was chosen to was to see how yeast can metabolize different sugars and how much Co2 they release when when metabolizing.To test the yeast at the lab we used 4 different types of carbohydrates which are known as Glucose‚Lactose‚Sucrose‚and Starch.The main thing that make some of these carbohydrates different from each other is if it’s a Monosaccharide‚ Disaccharide‚or Polysaccharide. Monosaccharide are basic sugars
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DISACCHARIDES (Haworth and Chair structures only) Lactose Sucrose HAWORTH CONFORMATION HAWORTH CONFORMATION CHAIR CONFORMATION CHAIR CONFORMATION Maltose HAWORTH CONFORMATION CHAIR CONFORMATION POLYSACCHARIDES Amylose CHAIR CONFORMATION HAWORTH CONFORMATION Glycogen B. BENEDICT’S TEST FOR REDUCING SUGARS Compound Color Reducing Sugar (yes/no) Water Blue No Glucose Red Yes Fructose Reddish-Orange Yes Sucrose Blue No Lactose Red Yes Maltose Red Yes Starch Blue No Glycogen
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Introduction: To determine the biological changes that occur to potato cores over a period of time in different solutions of sucrose and to relate these changes to the phenomenon of osmosis. Method: We soaked several discs of potato cuted using a cork borer with around 1 centimeter of diameter and 2 milimeters of lenght into sucrose solutions with a different range of concentrations from 0 to 1.0M. Then we weighed all the potato cylinders on an electronic balance
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strips. The dialysis tubing has a 12‚000 molecular weight cutoff and diameters of 4.8 angstroms. Sucrose has a weight of 342 and solution of 9.3 angstroms. We also need distilled water‚ And five 100mL beakers. Start the lab by labeling the beakers 1 through 5‚ and fill with 4 tap water and one 40% sucrose. Then make up five different solution:2 tap water‚ 20% sucrose‚ 40% sucrose‚ and 60% sucrose. Soak the dialysis tubing and clamp one end of each tube. Pour 10mL of each solution into bags and
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