Percent Water in a Hydrate PURPOSE To determine the percent water in a hydrate sample. INTRODUCTION Many substances contain water molecules as a part of their crystal structure. We call such solids hydrates‚ and we call the bound water the water of hydration. A hydrate has a definite number of water molecules bound to each anhydrous salt unit. The formula of the hydrate copper(II) sulfate pentahydrate is CuSO4 · 5 H2O The dot indicates that the molecules of water are attached to the ions in
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Water Rocket Lab Kinematics: Motion in Two Dimensions Cindy Cao AP Physics 1-212 Changzhou Senior High School of Jiangsu Province Abstract This paper introduces an experiment about launching a water rocket. The projectile motion of this water rocket will be examined.In this experiment‚the water rocket will be launched at 4 different angles 30°，45°60°and 90 °.We will measure the ranges‚maximum altitudes and air time in order to have a better understanding of the projectile motion.As the practical
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The inverted water method MLA citation BBC News. BBC‚ n.d. Web. 09 Nov. 2015. "Factors Affecting Enzyme Activity." Factors Affecting Enzyme Activity. N.p.‚ n.d. Web. 14 Nov. 2015. Enzymes. Scenario experiment AIM: To investigate one factor that affect the distribution of hydrogen peroxide by the catalase in this organism. In this catalase and hydrogen peroxide experiment‚ we will find out how enzymes act as catalysts by causing chemical reactions to occur. Using a potato and hydrogen peroxide
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...............................(1) Measurement of Relative Water Content (RWC%);Relative Turgidity (RT %): Relative water content was estimated according to a modification of the method of Weatherly (1950); Weatherly and Barr (1962); Slatyer (1957);Fletcher et al. (1988)on the final day of the experiment and was calculated by the formula given byKramer (1983).Detached leaf samples were weight immediately and floated on distilled water in a darkened refrigerator (5˚C). Saturation of the leaves was
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Sacramento tap water reveals ion concentrations of various different dissolved minerals such as calcium (Ca2+) and magnesium (Mg2+). These concentrations are a result of mineral deposits in local lakes and rivers. Perma Pure‚ a gas conditioning products manufacturing company‚ simplifies the mechanism of ion exchange by explaining that water is a solvent that dissolves most ionic bonds when exposed to compounds ("The Mechanism of Ion Exchange"). Therefore‚ as tap water passes through rocks it will
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Alisha Prakash Biol 111-513 The Properties of Water; Osmosis and Diffusion Hypothesis: When animal and plant cells are placed in a solution‚ the movement of water is effected by the solute concentration of the solution. If animal and plant cells are placed in a more concentrated solution‚ the solution becomes hypertonic to the cells‚ causing water to exit the cells. This changes the appearance of the cells‚ causing the cells to look darker (more concentrated) and shriveled up. Null Hypothesis:
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upstream and downstream fragments‚ 200 ng of pyrG marker fragment and adjust to 50 μL of double-distilled water. 35. Lysis Buffer: to prepare 50 mL of buffer dissolve 23.6 g of Guanidine thiocyanate (118.16 g/L) in 25 mL of double-distilled water. Once dissolved add: 2.5 mL of 1 M Tris-HCl pH 7.0 (121.14 g/L)‚ 2 mL of 0.5 M EDTA pH 8.0 (186.12 g/L) and 0.05 mL of Triton X-100. Add double-distilled water to 50mL (final concentrations: 4 M guanidine thiocyanate‚ 50 mM Tris-Hcl pH 7.0‚ 20 mM EDTA and 0.1
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11.1 Washing with cold distilled water Washing process is not only remove soluble protein‚ fat‚ and pro-oxidant‚ but may also remove antioxidant. Therefore the oxidative stability of muscle ultimately depends upon the antioxidant/prooxidant balance that remains after the muscle is washed. It suggests that washing may promote oxidation in mince since it effectively removes antioxidants from the fish. In addition‚ the neutral lipids are more easily removed than polar lipids‚ phospholipids and free
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Using a cooling glass of water to determine the area and volume of the curve formed. Research Question: To what extent can a cooling glass of water be modelled accurately and be used to find the area under the curve and volume formed by curve? Data Collection: In order to produce an exponentially decaying graph‚ I had to first heat a glass of water for a certain period of time {150 ml of water}. After the water was heated a temperature probe‚ connected to logger pro and laptop
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What organic molecule can be detected with Lugol’s? By using the Lugol’s iodine test‚ we can detect the presence of starches. Why put Lugol’s in the beaker and not the bag? When we put the Lugol’s regent (I2Kl) in the beaker‚ we can observe the effects of osmosis as the Lugol’s regent (I2Kl) solution on the outside of the beaker permeates the intestine (Dialysis tubing) inducing a chemical reaction that will turn the liquid in the intestine (Dialysis tubing) blue-black. If the amylase successfully
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