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Show that using many small volumes of organic solvent in an extraction from an aqueous phase is more effective than using fewer, larger volumes. Assume that the amount of material to extract, the total volume of organic solvent available, the aqueous phase volume and the distribution constant are all the same. Do this numerically or analytically.
Calculate the composition of the exhaust gases in kg/hr and calculate the percentage of benzene that is partially combusted.
calculate the concentration of sodium formate that must be present in a 0.10 M solution of formic acid to produce a buffer with a pH of 3.80
what is the concetration of acetic acid and sodium acetate.
If a sample of 0.188 grams of KCN is treated with an excess of HCL, calculate the amount of HCN formed, in grams.
A 32.85-{g} sample of a solid is placed in a flask. Toluene, in which the solid is insoluble, is added to the flask so that the total volume of solid and liquid together is 54.00 mL. The solid and toluene together weigh 58.88 g. The density of tol..
The free energy change of the conversion of tasmainium to bulgarium was - 60 kcal and the enthalpy of the reaction was determined to be - 9.2kcal.
A reaction mixture initially contains 0.050 M of all three chemical species in a 0.355 L vessel. What will the concentration of the SO2 be at equilibrium?
How many moles of each of the following were in the original sample?
you will need to construct a calorimeter to complete this project. what are the necessary features of a calorimeters. please answers have to be related to chemistry and specifically to this experiment.
Calculate the number of moles of quicklime, CaO, that would be produced by the decomposition of 30.0 moles of limestone, CaCO3, in the following reaction.
What are the two steps in the Experimental Procedures that are incorporated to reduce the loss of the lead (2) iodide precipitate. Identify the steps in the procedure and the reason for each step.
A sample of copper was pretreated and diluted to 500mL and portions of this solution were analyzed by measuring the absorbance of a copper (I) complex of 1, 20 phenanthroline using a standard addition technique.
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