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Cocaine has a partition coefficient of 3.0 between chloroform and water. What total volume of chloroform would be required to remove 99% of the cocaine from 100 mL of water in three successive extractions?
How much heat is needed to convert 10.0 g of ice at -25.0ºC to water at 80.0ºC?
write the net ionic equations for the reactions involved in the testing of each of the following anions
A. Liquids have very strong attractive forces holding them together B. Liquids have moderately strong attractive forces holding them together C. Liquids have very weak attractive forces holding them together.
why is the ortho-form of the diamine, and why is the ortho- form of the diamine a hindering impurity that must be rigorously removed before the production of Kevlar and Nomex?
The solubility of Ce(IO3)3 in a 0.20 M KIO3 is 4.4 multiplied by 10-8 mol/L. Calculate Ksp for Ce(IO3)3.
Write the condensed structural formula of the ester formed when each of the following reacts with methanol. For example, the ester formed when propanoic acid reacts with methanol is CH3CH2COOCH3.
Calculate the mole fraction of the salt in the solution
Which reaction intermediate is formed when 4-methylcyclohexene reacts with Br2 dissolved in CCl4?
what is the boiling point of a solution containing 2.33 grams of C8H10N4O2 , dissolved in 15 grams of benzene?
Explain what health risks may arise people use this hot water in the preparation and cooking and what is the equilibrium constant for this reaction
In analyzing a general unknown containing ions from several of the cation groups, a student treated the decante from Group II with Na3Co(NO2)6 and observed that a precipitate formed.
Calculate the volume of 0.50M NaOH needed to exceed saturation by 10% the volume from question 4 of 0.50M Mn(NO3)2 with Mn(OH)2.
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