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Two peaks on chromatogram have k1= 3.1 and k2= 4.9. Column efficiency is 2000 theoretical plates, void volume is 1mL. calculate the resolution between these compounds.
The standard free energy of activation of a reaction A is 76.9 kJ mol-1 (18.4 kcal mol-1) at 298 K. Reaction B is one hundred million times faster than reaction A at the same temperature
the reduction of 9-fluorenone to 9-hydroxyfluorene by sodium borohydride. What is the limiting reagent in the following procedure?
if 60 of heat is added to an aluminum can with a mass of 17.7 what is its temperature change? specific heat capacity
Determine the mass of snow that can be completely melted - Determine the mass of snow (frozen water) that can be completely melted with the application
How many moles of gas are in a balloon with a volume of 2.14 liters at a temperature of 298 K and a pressure of 1.11 atm?
workplace trends within and outside health care require employees to connect with an ever-widening array of coworkers
what is the differences between partial and full method validation? under what circumstances are they being carried out?
Describe how you would prepare the following aqueous solution: 230 g of a solution that is 0.60 molal Na2CO3 starting with the solid solute.
a sample of gas occupies a volume of 400 ml at 0.740 atm and 70 oc. calculate the pressure of the gas if its volume is
A fluoridated water supply contains F- at a concentration of 8.9 ppm. What is the maximum concentration of Mg2+ that can exist in this water supply without causing precipitation.
An object has a mass of 50.0g. When it is dropped into a graduated cylinder containing 15mL of water, the water level in the cylinder rises to 32mL.
an organic liquid is a mixture of methyl alcohol and ethyl alcohol. a 0.220g sample of the liquid is burned in an
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