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For the titration of a weak base with a strong acid, the half titration point is reached when: Answer A. pH = pKb. B. pOH = pKb. C. pH = pOH. D. pH = pKa.
Suppose that you developed your own new temperature scale, denoted oN. You chose 30.0oN as the temperature of freezing water and 280oN as the temperature of boiling water at 1.0 atm pressure.
Draw a structural formula of the R configuration of the compound shown below. Illustrate the stereochemistry about the chiral carbon using the "single up" (solid wedge) and "single down" (hashed-line wedge) bond tools. Show explicitly the bonds to..
Complete this equation to show how hydrofluoric acid, HF, acts as a Brønsted-Lowry acid in water. HF+H2O=?
Enantiomers and Order of Elution, The enantiomers (R and S forms) of the following chiral alcohols need to be separated by a suitable CHIRAL SEPARATION method.
A 25:75 mixture of acetone:toluene is heated to 70 C at a pressure of 760 mmHg. What is the total vapor pressure of the system? Is the system a liquid below boiling, at boiling, or a gas?
Rubidium has two naturally occurring isotopes: Rb-85 with mass 84.9118 amu and a natural abundance of 72.17%, and Rb-87 with mass 86.9092 amu and a natural abundance of 27.83%.
The first ionization energy of bismuth is = +703 . What is the longest possible wavelength of light that could ionize an atom of bismuth?
What is the value of Delta S when 2.7g of CH4 is compressed from 29.0 L to 18.0 L at a constant temperature of 100 C?
identify any intermediatesin the mechanism. write the rate law for each elementary reactionin the mechanism. D) if the first step is slow and the second one is fast
The tire is filled with dry air at sea level and a temperature of 60 degree F to 32 lb/square inch.standard sea level pressure is 101325 Pa at 0 degree C (STP).
calorimeter in which the temprature of the bomb and water increase from 19.5 to 22.83 C? the bomb has a heat capicity of 650 J/K; the caloriemeter contains 320g of water.
How many milliliters of a 0.20 M glucose C6H12O6 solution are needed to provide a total of 25.0 g of glucose?
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