Q.1 Bond enthalpy of fluorine is lower than that of chlorine‚ why? Q.2 Give the IUPAC name of the following compound: (CH3)3-C-C-COOH ║ O Q.3 On increasing temperature‚ activation energy of a reaction decreases‚ why? Q 4 Which of the following is most effective electrolyte in the coagulative of AgI/Ag+sol? K2SO4‚ MgCl2‚ K4[Fe(CN)6] Q.5 Write the reaction when glucose is heated with excess of HI. Q.6 Which Xe compound has distorted octahedral shape? Q.7 What is the denticity of
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and count how many drops of the provided bromine in methylene chloride solution it takes before the red color remains upon contact with the liquid sample. Record this information. Test the remaining two liquids in a similar way using the potassium permanganate
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affect the outcome of this experiment. Record the data from the information in the lab. Potassium Permanganate R.T. Methylene Blue R.T. Time (min) Total Diameter (mm) Distance of Diffusion * (mm) Rate (mm/min) * Total Diameter (mm) Distance of Diffusion * (mm) Rate (mm/min) * 0 15 30 45 Potassium Permanganate 5 Celsius Methylene Blue 5 Celsius Time (min) Total Diameter (mm) Distance of Diffusion * (mm) Rate (mm/min)
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percent of global production. Narcotics typically are produced in a three stage process. Coca leaves are first crushed and boiled with limewater and kerosene making coca paste. Coca paste is then mixed with sulphuric acid‚ potassium acid‚ potassium permanganate (sulphur dioxide can also be used)‚ and ammonia hydroxide‚ filtered‚ and dried into a cocaine base. The amalgam is dissolved in acetone forming white cocaine hydroxide‚ which is run through a strainer‚
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decontaminant procedure for cuvette: not washing with deionised water and then the solution it will contain. While all the results did not verify the Beer- Lambert law‚ there is correlation between the results for the absorbance for 4x10⁻⁴ of Potassium Permanganate which is .931 and 2x10⁻⁴ which is .427. We can see evidence of the Beer – Lambert law‚ as the difference between the two absorbance values is 0.5063‚ which is approximately 1/2‚ which are expected results. These errors also apply to part
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Enzyme Catalysis Lab Problem: Before the lab‚ one should understand: • The general functions and activities of enzymes; • The relationship between the structure and function of enzymes • The concept of initial reaction rates of enzymes; • How the concept of free energy relates to enzyme activity; • That change in temperature‚ pH‚ enzyme concentration‚ and substrate concentration can affect the initial reaction rates of enzyme-catalyzed reactions; and • Catalyst‚ catalysis‚ and catalase
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CARBON AND ITS COMPOUNDS Covalent Bond: A chemical bond formed by the sharing of two atoms. Types of Covalent Bonds i. Single Covalent Bond: A type of bond formed by sharing of one pair of electrons between two atoms. ii. Double Covalent Bond: A type of bond formed by sharing of two pairs of electrons between two atoms. iii. Triple Covalent Bond: A type of bond formed by sharing of three pairs of electrons between two atoms. Properties of Covalent Bond i. Their B.P. and M.P
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Quan Chapter 15: Redox Titrations 1. (A) Which of the following is true of a redox titration? (i) Since the redox reaction is spontaneous‚ the equilibrium constant does not have to be large for an effective titration. (ii) The titration effectiveness is increased when the two half-reaction potentials are far apart. (iii) Without an indicator the equivalence point cannot be detected. (iv) For an effective redox titration‚ the reducing agent must always be in the buret. (v) The equivalence
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HOW ARE REDOX REACTIONS DIFFERENT? Redox is the term used to label reactions in which the acceptance of an electron (reduction) by a material is matched with the donation of an electron (oxidation). A large number of the reactions already mentioned in the Reactions chapter are redox reactions. Synthesis reactions are also redox reactions if there is an exchange of electrons to make an ionic bond. If chlorine gas is added to sodium metal to make sodium chloride‚ the sodium has donated an electron
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of an alkyl halide product is indicated by cloudiness of the mixture‚ as the halides are only slightly soluble in water. This test indicates that a halogenation reaction has taken place. Each alcohol is also separately mixed with dilute potassium permanganate solution‚ which
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