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Why do we switch the solvent in chromotagraphy column and which solvent should be switched for
Determine the frequency, in hertz, of radiation having energy of 4.08×10?21 J/photon b. Determine the wavelength, in nanometers, of radiation with of 218 kj/mol energy
the average european woman consumes food with energy content of 7525kj. what is the daily intake in kilocalories or food calories
ketones react with dimethylsulfonium methylide to yield epoxides by a mechanism that involves (1) an initial nucleophilic addition followed by (2) an intramolecular Sn2 substituition, Show the mechanism.
The latent heat of vaporization of mercury is around 300,000 J/kg. What is the least amount of mercury (in kg) that can be vaporized when 3 million joules are introduced?
How much heat is required to vaporize 55.8g of acetone at its boiling point? The heat of vaporization of acetone at its boiling point is 29.1 kJ/mol
Why is the ability to separate 2 liquids by fractional distillation drastically reduced if heat is applied too rapidly to the distillation flask
For the reaction shown, find the limiting reactant for each of the following initial amounts of reactants.
calculate the final molarity of the solution that results when 125 ml of .200 M HCL is diluted to 1.00L
What are the other side products present in this biocatytic reaction? Name the principal enzymes taking part in this bioconversion. To which class of enzymes do they belong to?
The main reason that alkyl halies are good electrophiles is that: A) the carbon atom linked to the halogen is negatively polarized. B) the carbon atom linked to the halogen is positively polarized
A 4.000-g sample of the metal nitrate M(NO3)2 was dissolved in water and treated with excess aqueous sodium sulfate. The sulfate salt that formed weighed 3.318 g. Determine the identity of the metal.
If iron(III) acetate is added to be 1 x 10^-10 M in a solution that is 0.10 M NH3, what is Qsp and will Fe(OH)3 precitate? the Ksp of Fe(OH)3 is 4x10^-38 and Kb for NH3 is 1.8x10^-5
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