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One procedure pure product is obtained by execution column chromatography utilizing a solvent mixture of hexane and ethyl acetate.Second procedure- Methylene chloride is utilized as the mobile phase
Presuming the time needed and the volumes of the solvents are equal, define what are the advantages and disadvantages of each of these solvent systems?
The temperature of both solutions before mixing was 22.5C and it rises to 24.28C after the acid base reaction so what is the enthalpy change for the reaction per mole of CsOH
How would you determine the dS and dH for Cu2+ binding soil given K (distance) values at two different temperatures
Starting with the supernatant collected after the initial crystallization, suggest a procedure to isolate and purify the R-(+)-phenylethylamine enantiomer.
What would be the potential of the Cu-Zn cell be if the concentration of Cu2+ was 1.00M while the concentration of Zn2+ was 0.60M
A chemist dissolves 284 mg of pure potassium hydroxide in enough water to make up 140 mL of solution. Calculate the pH of the solution.
What minor product(s) might be expected by this method. Give the detailed reaction mechanism leading to the final product (major). What simple chemical test(s) would help establish that you had, in fact, made the desired alkene product
Use your complete rate law for the dye bleaching reaction to estimate the reaction rate at 25 degrees celcius, if the concentrations of bleach and due are both .10 M.
A solution is made from ethanol, C2H5OH, and water is 1.60 m in ethanol. How many grams of C2H5OH are contained per 230. g of water?
when the following equation is completed and balanced for the reaction in an acidic solution what is the proper coefficient for H+, Zn(s)+ Cr2O7^2-(aq)---> Zn^2+ (aq)+ Cr^2+(aq)
Which of the following statements are evidence that gases do not always behave ideally? Check all that apply. When two gases are mixed, they follow Dalton\'s law of partial pressures.
Two moles of an ideal gas originally at 380 torr and 298K are compressed at constant temperature to 680 torr. Find the initial and final volumes.
a student measured 50.0 ml of a salt water solution (density=1.021 g/ml) into a flask. The Cl minus in the measured sample required 16.67 ml of 1.0466 M AgNO3 solution to reach the end point.
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