Undergraduate Questions (50 Pts) 1. (4 pts) A chemist working in a pharmaceutical lab synthesized a new drug as a racemic mixture. Why is it important that she separates the two enantiomers and test each for its biological activity? 2. (6 pts) Phosphoric acid (H3PO4) has three dissociable protons‚ with the pKa’s shown below. Which form of phosphoric acid predominates in a solution at pH 4? Explain your answer. Acid pKa H3PO4 2.14
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1). Hlb encodes beta-hemolysin that has hemolytic acivity on blood agar (Dinges et al.‚ 2000). More studies are needed to find out if LukAB/HG gene is uniformly conserved in all S. aureus isolates. 3- LUKED: In contrast to gamma-hemolysin and LukAB/HG‚ lukED genes are outside core genome. They present in S. aureus pathogenicity island (SaPI) vSaβ which is an immobile genatice element . Some genes such as enterotoxins genes and serine proteases
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8. Have you got any ideas for the harry potter future? 9. If you could be any other character in harry potter. Which character would you be? 10. why have you chosen that character? hello hello g g g g g g g g g g g g g ihih g hi hg i jhi hi h hello hello hello hello hello hello ello hello hello h hi hi hi h ihih hi hih hi hih ih hi hi hih ih hi hih ih hi hi hih hi hih ih hih ih hi hih ih ih hi hih hih ihi ih ihEnglish Homework Harry Potter 1. How did it feel when you were
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Research Paper on Acute Respiratory Distress SyndromeAbstract Acute Respiratory Distress Syndrome is a life-threatening condition that results from injury to the alveolar-capillary membrane. The condition is associated with extensive pulmonary inflammation and small blood vessel injury in all affected organs. ARDS is considered to be more the end result of a variety of severe injuries instead of an actual disease. ARDS was first officially discovered in 1967. There are 3 identified stages of ARDS
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Laboratory Report on the Reaction of Flames Towards Medals  Introduction The purpose of the flame lab was to identify a set of flame-test color standards for selected metal ions‚ relate the colors of a flame test to the behavior of excited electrons in a metal ion‚ observe spectral lines using diffraction grating‚ and to identify an unknown metal ion by using a flame test. My hypothesis for the lab was that most of the flames when sprayed with a solution will be a orange-red color. The
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Introduction Cardiovascular Dynamics and the Cardiovascular Physiology experiments both have multiple goals. The first experiment aims to understand how blood flow‚ pressure gradient‚ and resistance relate to one another. To understand this‚ resistance and contributing factors‚ such as vessel radius‚ viscosity‚ and vessel length must be studied. The effects of vessel radius and stroke volume on the ventricular pump should also examined. The experiment also calls for an understanding of cardiovascular
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A.) How could an infection in Cari’s nasal passages and pharynx spread into her sinuses? - Since Cari is a smoker‚ cigarette smoke has paralyzed her cilia and stimulated the goblet cells lining her respiratory passages to secrete excess amounts of mucus. Ducts from the sinuses open into the internal nose providing a passageway for microorganisms to travel into the sinuses. B.) What is the couch reflex? Describe the process that Cari’s respiratory system is using to clear her lungs by couching
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Ideal Gas Law Packet Name ______________________________ 12.3 Date __________________ Period _______ Given: Ideal Gas Law = then P = n = V = T = R = 1. What pressure is required to contain 0.023 moles of nitrogen gas in a 4.2 L container at a temperature of 20.(C? 2. Oxygen gas is collected at a pressure of 123 kPa in a container which has a volume of 10.0 L. What temperature must be maintained on 0.500 moles of this gas in order
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Focus assessment NUR-645E Griselda Richard June 18‚ 2014 Focus Assessment The purpose of this paper is to document a focused history‚ physical exam‚ nursing diagnoses‚ and nursing process of a case study about a 22-year-old woman that reports as chief complaint : feeling “sick with the flu” for the past 8 days. History of present illness : vomiting several times every day‚ having difficulty
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Name _________________________________________ Last 4 digits of your A# _______________ 1. Use the abridged article about McDonald’s on p. 7 to answer the following questions: a. Explain the cost issues that McDonald’s is facing. (4 points) b. Explain the demand issues that McDonald’s is facing. (4 points) c. Explain the roles played by the price elasticity of demand and the income elasticity of demand in the menu decisions McDonald’s
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