ACTIVITY 1 Simulating Dialysis (Simple Diffusion) 1. Describe two variables that affect the rate of diffusion. __The size and the concentration. ___ 2. Why do you think the urea was not able to diffuse through the 20 MWCO membrane? How well did the results compare with your prediction? __ The molecules were to large to go through. My results matched._ 3. Describe the results of the attempts to diffuse glucose and albumin through the 200 MWCO membrane. How well did the results compare with your
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All surface water and some groundwaters require treatment prior to consumption to ensure that they do not represent a health risk to the user. Health risks to consumers from poor quality water can be due to microbiological‚ chemical‚ physical or radioactive contamination. However‚ microbiological contamination is generally the most important to human health as this leads to infectious diseases which affect all populations groups‚ many of which may cause epidemics and can be fatal. Chemical contamination
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Introduction: The theory behind the extraction of a solution containing benzoic acid‚ cellulose‚ and methyl orange involves many components pertaining to the fundamental ideas of solubility and polarity. Using the concepts of like dissolving like and acid base reactions‚ a solution of organic acid (benzoic acid)‚ a water soluble compound cellulose‚ and an organic soluble compound methyl orange‚ can be separated and benzoic acid can be isolated by a method of extraction. At the fundamental
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October 17 & October 24‚ 2012 How is Aspirin Made? This lab is about synthesizing aspirin using a hotplate to heat the reaction. It involved vacuum filtration‚ recrystallization‚ and comparing the properties of aspirin with salicylic aspirin. The first thing we did in this lab was make a hot-water bath by putting a beaker with water on a hot plate. After measuring out 2.1 grams of salicylic acid and 3 ml of acetic anhydride‚ we mixed the two together‚ along with 3 drops of sulfuric acid. We
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Assessment 2 – Congestive Cardiac Failure 1. Mr Wright’s admission states that he has CCF (congestive cardiac failure). Clearly define CCF. What organs and which body systems are affected by this disorder? Congestive cardiac failure defined Congestive cardiac failure (CCF) is a progressive disease of the heart‚ which involves loss of pumping ability by the heart. Congestive cardiac failure occurs when the myocardium loses its ability to pump enough blood to meet the body’s metabolic needs and is
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The Endocrine Society’s CliniCal Guidelines Osteoporosis in Men: An Endocrine Society Clinical Practice Guideline Authors: nelson B. Watts‚ Robert a. adler‚ John P. Bilezikian‚ Matthew T. drake‚ Richard eastell‚ eric s. Orwoll‚ and Joel s. Finkelstein Affiliations: Mercy Health Osteoporosis & Bone Health services (n.B.W.)‚ Cincinnati Ohio 45236; McGuire Veterans affairs Medical Center and Virginia Commonwealth university school of Medicine (R.a.a.)‚ Richmond‚ Virginia 23298; Columbia
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byproducts‚ as well as the desired product. Extraction allows for the separation of a compound from a complex mixture. The different components can be eliminated by their different solubilities. Ultimately‚ through a simple distillation and filtration process‚ crystals of the desired product can be achieved. Table of Reagent: Structure Mw. m.p. b.p. d.(density) Nutmeg Methylene Chloride 84.9328 -96.7 39.8 1.3255 Acetone 58.0798 -94.3 56.2 0.7857 Trimyristin C45H86O6 723.1708
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cholera and how it spread consisted primarily of morbid poison entering the alimentary canal through means of contaminated water consumption. Snow believed this to be the basis of how cholera was contracted by individuals and believed improper sewage filtration was to blame as well as a means of spreading the disease from person to person. However‚ previous explanations of how cholera was contracted consisted of the theory of airborne infection. This theory proposed that cholera was contracted by inhaling
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Physioex 9.0 Review Sheet Exercise 1 Cell Transport Mechanisms and Permeability Name __Christopher Scott_ Lab Time/Date ___1/15/2014 Activity 1 Simulating Dialysis (Simple Diffusion) 1. Describe two variables that affect the rate of diffusion. ___ Two variables that affect rate of diffusion are molecule size and plasma membrane composition. A larger molecule will diffuse more slowly than a smaller molecule. The lipid content of the plasma membrane determines permeability of certain molecules. A
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Extraction and analysis of two compounds from unknown solution C ABSTRACT Liquid C and solid C were both extracted from unknown solution by first using chemically active liquid-liquid extract‚ followed by vacuum filtration. Liquid C and solid C were then purified with the use of simple distillation and recrystallization respectively. Through the process of recrystallization‚ the percentage purity of solid C was found to be 6.01%. The melting point range of purified solid C was 117.0 – 119
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