Ni (s)? 2. 3Ca (s) + 2Al(NO3)3 (aq) 3Ca(NO3)2 (aq) + 2Al (s) a) Predict the voltage for an electrochemical cell based on the above reaction. Assume standard conditions. 3. Use the Eo values to determine if the following reaction is spontaneous or not: Mg2+ (aq) + Cu (s) Mg (s) + Cu2+ (aq) 4. balance the following reaction b) Zn (s) + NO3- (aq) Zn2+ (aq) + NH4+ (aq) (acidic) c) Cl2 (aq) Cl- (aq) + ClO3- (aq) (basic) d) MnO4-(aq) + Sn2+ (aq)
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Elijah Kim Mrs. Dobler Course 2 2/10/15 Titration lab Titration is used to find the specific amount of a standard solution in an amount of unknown liquid. Titration in this lab is performed with the chemical reactions between acids and liquids. During titration, we have to stop at the point where stoichiometric amounts of acids and bases are reacting. We can find that point by looking for indicators, for example in this lab the indicators were changes in color. So the purpose of all this is
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Michaelis-Menten Kinetics: The Enzyme-Catalyzed Hydrolysis of Sucrose1 Background Of the numerous chemical reactions whose kinetics have been studied, some of the most interesting and complex are those which take place in living organisms. These reactions, when studied under non-biological conditions (lack of organisms and their various biomolecules), are often exceptionally slow: often hours or days, and sometimes even years are required before equilibrium is reached. Yet life requires seconds
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Precipitation Lab Purpose: 1. Identify the ions present in various aqueous solutions. 2. Combine solutions and identify the reactions that form precipitates. 3. Write balanced molecular equation, complete ionic equation, and a net ionic equation for each precipitation reaction. Materials: • Small test tubes • Various solutions Procedure: 1. Add 10-15 drops of the each reactant to a test tube. 2. Observe the results when the two solutions are combined in the test tube. 3. Record your
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Solubility is the property of a solid, liquid, or gaseous chemical substance called solute to dissolve in a solid, liquid, or gaseous solvent to form a solution of the solute in the solvent Solubility is defined as the ability of one substance to dissolve within another substance. What Affects Solubility? One of the factors that has a profound impact on solubility is temperature. Temperature, a measure of the available thermal energy, can increase the solubility of solids in liquids. This phenomenon
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Chemistry “Chemical Reaction and the PH Scale” Chemical reactions are the heart of chemistry. People have always known that they exist. The Ancient Greeks were the firsts to speculate on the composition of matter. They thought that it was possible that individual particles made up matter. As you might imagine, it's useful to be able to measure the acidity of solutions. Scientists have come up with the pH scale for determining the concentration of acid in a solution so we can distinguish
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In order to identify the predation functional response of H. axyridis to tea aphids, the experiment was conducted in the controlled environment incubators (16-hr-light photoperiod; 25±3°C; 70±3% RH). The tea aphids used in this experiment were young nymphs. One first instar, starved for 24h, was placed into Petri dish (diameter 9cm and height 2cm) with a soft writing brush, tea aphids along with fresh host plant leaf were also provided. The open end of Petri dish was covered with porous pvc film
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Chapter 4 Optimisation of a Protein A Chromatography Process Introduction The optimisation of a chromatography, we know, is vital to the efficiency of a separation process. Protein A chromatography by virtue of its incredible ability to achieve high purity of biopharmaceutical products has made itself indispensable for downstream purification of biomolecules (Hammond et al.) Even though many variations of different chromatographic separations have been employed as ‘capture’ steps over the years
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methyl esters were achieved by an autoclave nitrogen pressurized reactor equipped with a magnetic stirrer and a thermocouple.42 A maximum yield (97%) of methyl ester was obtained at a temperature of 180 °C, 1:15 molar ratio of methanol and oil for a reaction period of 2 hours. The 3 wt% of catalyst amount and 350-360 min-1 agitation speed were fixed respectively to obtain good yields. 2.13. Esterification of free fatty acids in crude palm oil The production of biodiesel from the crude palm oil by the
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