Complete and submit Essay 4 (BIO201 LESN 10 Essay 4 N)‚ as instructed below: 1. A patient is admitted for electroconvulsive treatment (ECT). The physician orders the neuromuscular blocking agent metocurine iodide (metubine) to reduce trauma by relaxing skeletal muscles. Explain the process of muscle contraction and how a neuromuscular blocking agent‚ such as metubine‚ would interfere with muscle contraction. According to the Mayo Clinic website electroconvulsive treatment is the use of an electrical
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The first step in both mechanisms is the protonation of the alcohol to form an oxonium ion‚ converting the OH group into a good leaving group. What happens next depends on the nature of the alkyl group‚ R. If R is a group that readily forms a carbocation‚ then the slow‚ rate-determining step is the loss of a water molecule from the oxonium ion. Once formed‚ the carbocation then reacts rapidly with a halide ion to form the alkyl halide. SN1 Mechanism: The first step is protonation of the alcohol‚
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Chapters 11 12 Periodic Table Name __________________ ( ) Class __________ Date _________ History of the Periodic Table Russian chemist Dmitri Ivanovich Mendeleev 1834-1907 Arranged elements in order of increasing atomic masses Elements with similar chemical properties fall into the same vertical column Such an arrangement is the Periodic Table The Periodic Table The Periodic Table is a list of elements arranged in order of ______________ _____________ (__________) ____________. Groups
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Analysis of Commercial Bleach Lab I. Purpose In this experiment‚ the amount of sodium hypochlorite in a commercial bleach will be determined by reacting it with sodium thiosulfate in the presence of iodide ions and starch. A solution of sodium thiosulfate of known concentration will be added to the bleach using a buret in a titration procedure. The disappearance of the dark blue color of the starch-iodine complex will signal the end point. II. Procedures Pre-Lab Questions 1. What is
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excess of potassium iodide solution to a known volume of an acidified standard potassium iodate solution according to the following equation: IO3-(aq) + 5 I- (aq) + 6 H+ (aq) 3I2 (aq) + 3H2O (l) Then the experiment is immediately followed by a back titration of the excess liberated iodine with standard sodium thiosulphate solution as shown below: I2 (aq) + 2S2O32- (aq) → 2I- (aq) + S4O62- (aq) With iodine solution‚ the thiosulphate ion is oxidized quantitatively to tetrathionate ion. The amount of
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ELECTRONEGATIVITY This page explains what electronegativity is‚ and how and why it varies around the Periodic Table. It looks at the way that electronegativity differences affect bond type and explains what is meant by polar bonds and polar molecules. If you are interested in electronegativity in an organic chemistry context‚ you will find a link at the bottom of this page. What is electronegativity Definition Electronegativity is a measure of the tendency of an atom to attract a bonding pair
Free Ionic bond Chemical bond Electronegativity
THE s-BLOCK ELEMENTS 291 UNIT 10 THE s -BLOCK ELEMENTS The first element of alkali and alkaline earth metals differs in many respects from the other members of the group After studying this unit‚ you will be able to • describe the general characteristics of the alkali metals and their compounds; • explain the general characteristics of the alkaline earth metals and their compounds; • describe the manufacture‚ properties and uses of industrially important sodium and calcium
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2. Qualitative ORGANIC functional group tests in various homologous series | TEST FOR | TEST METHOD | OBSERVATIONS | TEST CHEMISTRY and comments | ALKENE or alkyne i.e. any non-aromatic unsaturated hydrocarbon with a double or triple carbon-carbon bond. | Bubble gas through‚ or add liquid to‚ a solution of bromine in hexane or water. | The orange/brown bromine rapidly decolourises‚ as a saturated colourless organic bromo-compound is formed. | R2C=CR2 + Br2 ==> BrR2C-CR2BrRCCR + 2Br2 ==> Br2RC-CRBr2R
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reactions below‚ (i) state and explain what would be observed; and (ii) write an appropriate equation. (a) adding excess sodium sulphite solution to iodine solution (b) adding aqueous chlorine to potassium bromide solution (c) adding excess potassium iodide solution to acidified potassium permanganate solution 1 (d) adding excess iron(II) sulphate solution to acidified potassium dichromate solution (e) adding concentrated nitric acid to magnesium ribbons (f) (g) (h) (i) (j) (k) (l) (m) (n) 5. adding
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Links: Jump up ^ Nyholm‚ R. S.; Woolliams‚ P. R. (1968). "Manganates(VI)". Inorg. Synth. Inorganic Syntheses 11: 56–61. doi:10.1002/9780470132425.ch11. ISBN 978-0-470-13242-5.
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