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Problem- Considering TLC and semi-microscale column chromatography techniques: how are they similar and how are they different? Make sure you explain how they are different in terms of polarity (bottom of TLC plate but top of column). What is the role of the solvent(s) (mobile phase) in TLC? In column chromatography?
Solve the above problem in detail no word count
if 860 liters of neon at 45°C and 800 mm. are decreased to 700 liters at the same pressure, what is the new temperature of this gas?
what are the metabolic and physiological processes that increase the concentration of protons and carbon dioxide in the
What is the value of the reaction quotient, Q, for the cell that is constructed from the two half-reactions when the Zn2+ concentration is 0.0100 M and the Ag+ concentration is 1.25 M
Born-Haber cycles are called cycles because they form closed loops. If any five of the six energy changes in the cycle are known, the value of the sixth can be calculated.
Draw (S)-3-hexanol, then indicate the stereochemistry of the product formed when it is treated with each of the following reagents
Explain what is the unit that forms the basis of the glycogen polymer. The enantiometric forms of 2-bromopentate. The mirror-image isomers aren't superimposable on each other. If you replace Br with CH3 will compound be chiral
Can solution color be predicted from the Absorbance wavelength max or Transmission wavelength max color(s). Aluminum nitrate. Cadmium nitrate
A block of copper, mass at 500 grams and initially at T = 293 K is in thermal contact with an electric heater at a resistance 1.00 kiloOhms and negligible mass. A current of 1.00 A is passed for 15.0 seconds. How do you calculate the change in ent..
if the emission lines in a particular series of the hydrogen atom were studied for example the lines int he balmer
An unknown solution of ethanol was titrated with 25.0ml of .02M solution of potassium dichromate in sulfuric acid in sulfuric acid. Determine the mass (in grams) of ethanol in the unknown sample
Twenty-five pounds of propane are held in a sealed container at 350 psia. The volume of the container is three cubic feet. Compute the weights and volumes of the two phases of the container.
Explain what volume of 0.200 M K2Cr2O7 will be required to oxidize the Fe2+ iron in 60.0mL of .200 M FeSO4 solution. Cr2(O2-)7 + Fe2+ -->Cr3+ + Fe3+
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