non-metals (both negative in compounds) and both are used for disinfecting and bleaching. What will happen if chlorine is added to a solution containing bromide ions? What will happen if bromine is added to a solution containing chloride ions? Permanganate ions (MnO4-) react with iron(II) ions (Fe2+) in acid solution. What about the ratio in which these ions react? Does the balanced equation
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could occur. These pumps correspond to the sodium/potassium pump in the cell membrane. The sodium/potassium pump actively pumps three sodium ions out of the cell for every two potassium ions pumped into the cell‚ thus maintaining the membrane potential. You may wish to figure out other macroscopic situations where active energy input is required. The potassium permanganate should have traveled about twice as far as the potassium chromate. The potassium chromate should have traveled just a bit further
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OXIDATION-REDUCTION REACTION OXIDATION-REDUCTION REACTION: IODIMETRIC AND IODOMETRIC METHOD SUBSTANCE TO BE ASSAY AQUEOUS/NON-AQUEOUS ALKALINITY / ACIDIMETRY DIRECT/RESIDUAL TITRATION TITRANT INDICATOR CHEMICAL REACTION Assay of Antimony potassium tartrate Direct titration 0.1 N Iodine Starch TS KOOCCHOHCHOHCOO (SbO) + I2 + H2O KOOCCHOHCHOHCOO (SbO2) + 2HI + 2HI + 2NaHCO3 2NaI + 2H2O +
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INVESTIGATION 12.A Target Skills Determining the reactivity of various metals Testing Relative Oxidizing and Reducing Strengths of Metal Atoms and Ions By observing whether reactions occur between solid metals and metal ions in solution‚ you can determine the order of oxidizing and reducing agents according to strength. Question How can the presence or absence of a reaction provide information about the relative strength of oxidizing and reducing agents? Safety Precautions
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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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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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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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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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