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Suppose solute A has a partition coefficient of 4.0 between diethyl ether and water. Demonstrate that if 100mL of solution of 5.0g of A in water were extracted with two 25mL portion of diethyl ether, a smaller amount of A would remain in the water than if the solution were extracted with one 50mL portion of diethyl ether.
the air is at a standard temperature and pressure, how many gaseous molucules does the flas contain
What is the pH of a solution which is 0.021 M in weak base and 0.039 M in the conjugate weak acid (Ka = 7.1 Ã- 10â€"6)? pH=?
Which of the following is both a decomposition reaction and a reduction-oxidation reaction? a. H2CO3(aq) --> Co2(g) + H2O(l) b. Zn(s) + SuNO3(aq) --> Cu(s) + ZnNO3 (aq) c. Ca(OH)2(aq) + 2HCl(aq) --> CaCl2(aq) + 2H2O(l)
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.
If you used 0.165mL of acetic anhydride, and 0.167g of p-aminophenol what was the limiting reageant? How many moles of the non-limiting reageant remained after the reaction was complete
Calcium nitrate and ammonium fluoride react to form calcium fluoride, dinitrogen monoxide, and water vapor.
Is strategic behavior important in this market pharmaceutical drugs. Avoid answering any of the questions with a quote.
A 34.32-g sample of a solid is placed in a flask. Liquid toluene, in which the solid is insoluble, is added to the flask so that the total volume of solid and liquid together is 96.44 ml.
what are the possible sources of error when finding the density of a liquid and of a solid? what can be done to avoid these errors?
To produce 225 moles of tetraphosphorus decoxide how many moles of oxygen are required?
How and why are the lines from the metal salt solutions different from the hydrogen lines. Explain in terms of theory of hydrogen atoms and salt solution atoms.
When dealing with ICE tables and calculating Kb and such, how do you do the algebra to calculate x when x is NOT negligible?
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