in new directions. Diffusion is one result of this molecular movement. Diffusion is the random movement of molecules from an area of higher concentration to areas of lower concentration. Osmosis is a special kind of diffusion where water moves through a selectively permeable membrane that only allows certain molecules to diffuse though (Lab Manual 7e‚ 2010). Diffusion or osmosis occurs until dynamic equilibrium has been reached. This is the point where the concentrations in both
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PRACTICAL 7 TITLE : DETERMINATION OF ERYTHROSINE CONCENTRATION USING UV- VISIBLE SPECTROPHOTOMETER INTRODUCTION In chemistry‚ spectrophotometry is the quantitative measurement of the reflection or transmission properties of a material as a function of wavelength. It is more specific than the general term electromagnetic spectroscopy in that spectrophotometry deals with visible light‚ near-ultraviolet‚ and near-infrared‚ but does not cover time-resolved spectroscopic techniques. Spectrophotometry
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An investigation to see how much oxygen is given off when different concentrations of catalase are added with hydrogen peroxide. Aim: To see if changing the concentration of catalase (found in celery) with hydrogen peroxide affects the amount of oxygen given of. Background Information: (Hydrogen peroxide - H2O2 1/2O2+H2O) Enzymes: Hundreds of chemical reactions happen simultaneously inside living cells and it’s the job of enzymes to control and regulate the various metabolic
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Concentration Camps in Vienna The Auschwitz concentration camp complex was the largest of its kind established by the Nazi regime. It included three main camps‚ all of which deployed incarcerated prisoners at forced labor. One of them also functioned for an extended period as a killing center. The camps were located approximately 37 miles west of Krakow‚ near the prewar German-Polish border in Upper Silesia‚ an area that Nazi Germany annexed in 1939 after invading and conquering Poland. The SS authorities
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You’ve heard that your base salary is largely determined by your education level – but did you ever wonder exactly how much education matters? If you’ve got enough smarts‚ it shouldn’t matter whether or not you have formal training – right? Wrong. At least‚ it might not be so simple. As job scarcity continues to drive more competition to each open position‚ administrative office support professionals with strong educational backgrounds are the ones scoring high-paying jobs. Because employees with
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10.2 Determining the Concentration of Ammonia in Window Cleaner Solution Design (D) Aim To determine the concentration of ammonia‚ NH3‚ in the commercial window cleaner solution Background Window cleaner contains ammonia‚ NH3‚ a weak base‚ which helps remove dirt from glassware. The concentration of ammonia in the window cleaner solution varies by brands. Titrating the window cleaner solution with an acid of known concentration allows us to calculate the concentration of the ammonia in that
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Concentration Camps Sydney Quarantillo Grand Island Senior High School “The Holocaust illustrates the consequences of prejudice‚ racism and stereotyping on a society. It forces us to examine the responsibilities of citizenship and confront the powerful Ratification’s of indifference and inaction” said Tim Holden. The holocaust is something worldwide that will never be forgotten and cannot be erased from history. To understand the holocaust learning about Adolf Hitler
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Experiment 2: Kinematics of Human Motion Laboratory Report Leopoldo Luis A. Gueta‚ Lady Lian Lagamayo‚ Val Ian Caleb Leus‚ Kimberly Anne C. Macarilay Department of Math and Physics College of Science‚ University of Santo Tomas España Street‚ Manila Philippines Abstract Kinematics is the branch of classical mechanics that describes the motion of bodies and systems without consideration of the forces that cause the motion. There are four activities done in this experiment. Graphical analysis
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1. The label CORROSIVE on a chemical container indicates Ans : ( b ) that contact destroys living tissue as well as equipment 2. FLAMMABLE means Ans : ( a ) easily ignited and capable of burning rapidly 3. " Fatal if swallowed " indicates Ans : ( c ) that the substance will cause death if ingested 4. What is the correct way to handle the following situation? Briefly explain. a. Chemical : Acetic asid i. Inhalation exposure Ans : Remove the person from the exposure. Begin rescue
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Name: student number: Experiment 2 Analgesic action of morphine (The method of hot plate) Aim: To observe the analgesic effect of morphine. Discussion: Stimulate the position of animal by temperature to produce pain reaction. Put the mouse on the metal plate which has heat up to 55oC. The pain reaction is identified as to lick the
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