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What is the reason for using a phase transfer catalyst? a)It is used to transfer the catalyst to the active site of the reaction b)It serves as a proton transfer agent which moves protons from a base to an acid c)It is a small molecule which attaches to the catalyst to make it more effective in catalyzing the reaction. d)It is used to keep polar and nonpolar portions of the reaction solution mixed in order for the reaction to take place
Consider the temperature change, together with the volume and concentration of the acid and base, noted in the HAZMAT team's response regulation information
The molecular mass of an unknown compound was determined by measuring the freezing point depression of an aqueous solution of the compound
What is the relationship between the structures of esters and their odors. What is the relationship between the structures of esters and the carbonyl peaks from IR spectra
In a first order decomposition in which the rate constant is 0.201 sec-1, how long will it take (in seconds) until 0.131 mol/L of the compound is left, if there was 0.566 mol/L at the start
Assuming that the calibration curve passes through the origin, what absorbance would be recorded for a solution with a Pb(NO_3_)_2_ concentration of 0.335 M.
Caffeine has a distribution of 4.6 between water and dichloromethane. Calculate how much caffeine (I used 0.5283g of caffeine) is extracted per each 6ml dichloromethane extraction.
a soft drink contains 35 mg. of sodium in 315g. of h2o. what is the concentration of sodium in the soft drink in mass
isopropyl alcohol c3h8o is sold in drug stores as rubbing alcohol. isopropyl alcohol is a water-soluble liquid with a
One model of the hydrogen atom relies upon the idea that the electrons reside in stable orbits from which they can not deviate and are found outside of a small, densely packed group of protons. This model was created by
the presence of the radioactive gas radon rn in well water obtained from aquifers that lie in rock deposits presents a
A laser pulse with wavelength 555nm contains 4.40mJ of energy. How many photons are in the laser pulse.
In an experiment, at this temperature, 1.10 mol of H2 and 1.10 mol of F2 are introduced into a 1.08-L flask and allowed to react. At equilibrium, all species remain in the gas phase.
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