Solute Concentration of Potatoes Block 2-2 Purpose: To determine the concentration of solute in the potato’s cytoplasm by measuring the change in mass after the process of osmosis. Materials and Equipment: Refer to Biology 12 Lab Manual – Investigation 13 Procedure: Refer to Biology 12 Lab Manual – Investigation 13 Data and Observations: The Potatoes change in mass after the process of Osmosis Test Tube # | Concentration of Sucrose
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PGEG381 L50 Rock Mechanics & Reservoir Laboratory Spring 2010 Lab Session No.5 Absolute Permeability Using a Gas Table of Contents 1.0 Abstract ……………………………………………2 2.0 Equipments used ………………………………………2-3 3.0 Test Procedures ……………………………………...3-5 4.0 Results ………………………………………………….5-7 5.0
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3. Why are stabilisation salts added to evaporated or condensed milks prior to heating? The heat stability of milk is of tremendous importance in the successful processing of milk and the manufacture of most dairy products. Appropriate application of heat becomes necessary not just for destruction of spore-resistant micro-organisms but also for the preservation of the most desirable product characteristics. However‚ milk should not coagulate on heating. Heat coagulation is chiefly caused by de-stabilization
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third reaction involves molecular iodine becoming a dark blue starch;I2(aq) + starch blue-black complex3. These three reactions react in a sequence. In any reaction the concentration is exponentially related to the rate of the reaction. The rate of the reaction is dependent on potassium iodate4. Therefore as the concentration increases‚ the rate of the reaction also increases. Since the rate of the reaction is inversely proportional to time‚ as the
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Rosalyn Tomlin English 316-040 Professor B. Greene Final Essay 5/16/13 Finding Self-Love by Healing and Remembering Your Inner Self In my reading of Toni Cade Bambara’s novel The Salt Eaters‚ I found myself at first disconnected and missing the real meaning behind the text. After reading it and putting it down and then picking it back up. The novel contains many variations of characters and different storylines that soon intertwine
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The Bread of Salt Summary It was his assigned duty to be up early in the morning and be on his way to the baker’s to buy rolls and pan de salt for the breakfast table. He was fourteen and he has already got used to his task. On his way he thought of the bread of salt – pan de salt – and wondered how it was made‚ what gives its flavour and shape. He looked around the landscape at daybreak and once again remembered how much he adored Aida‚ the niece of the old Spaniard whom he thought he was destined
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Ammonia and Its Salts 1. Ammonia‚ NH3 is a very important compound in industry. 2. The main uses of ammonia: a) To manufacture nitrogenous fertilizers such as ammonium sulphate‚ ammonium nitrate and urea b) The liquid form is used as a cooling agent (refrigerant) in refrigerators c) As a raw material for the manufacture of nitric acid in the Ostwald process d) To be converted into nitric acid used for making explosives e) As an alkali to prevent the coagulation of latex
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The Effect of the Concentration of Sulphuric Acid on the Reaction Rate with Magnesium Sarah Cain SCH 4UB Mr. Lankin April 1‚ 2009 Introduction The nature of the problem is to design an investigation that examines a variable affecting the reaction rate. In this experiment‚ magnesium will be reacted with different concentrations of sulphuric acid. The reaction is shown by the following chemical equation: H2SO4 (l) + Mg (s) → MgSO4 (aq) + H2
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Experiment #7: Acids‚ Bases and Salts Mabag‚ Viannery D.‚ Mangune‚ Paolo D. Chem 14.1‚ MAB1‚ Ms. Angelyn del Rosario March 8‚ 2010 I. Abstract The experiment allowed students to explore different electrolytes and classify them into acids‚ bases and salts by using different indicators or by measuring the pH levels of each. The experiment also helped students classify different substances through their conductivity properties. The preparation of a 1 M stock solution from NaOH pellets diluted to a
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Professor Shannan Lewis-Blair‚ M.S. Submitted By: Kara Hackett‚ Ryan Ritchie & Angie Wagoner Kara_Hackett@pba.edu‚ Ryan_Ritchie@pba.edu & Angie_Wagoner@pba.edu Date of Submission: September 10th‚ 2013 Title of Assignment: Barriers to Concentration CERTIFICATION OF AUTHORSHIP: I certify that I am the author of this paper. This paper was prepared by me specifically for this course. I have also cited any sources from which I used data‚ ideas‚ or words‚ either quoted directly or paraphrased
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