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In thin layer chromatography, solvent percolates upward through capillary action and displaces the air surrounding the particles on the plate's surface, resulting in good contact between mobile and stationary phases. In column chromatography, how is that good contact ensured?
a spheroidal bacterium with a diameter of 1micromolemole contains four molecules of a particular protein. what is the
What can you conclude from a graph where the plot of ln p (pressure) versus t (time) is linear instead of curved? (for conversion of methyl isonitrile into acetonitrile)
a normal mitochondrion in a normal cell (there are no inhibitors present). The amino acid glutamate can be converted into alpha ketoglutarate which then can enter the Citric Acid Cycle.
What is the theoretical economy of heating A mixture of sodium carbonate and sodium bicarbonate. sodium carbonate is the desired product and water and carbon dioxide are the undesirable wastes .
An organic substance has an enthalpy of vaporization of 29.0 kJ/mol. The compound has a vapor pressure of 524 mm Hg at 25 °C. At what temperature is the vapor pressure equal to 115 mm Hg?
Predict whether a reaction will occur in each of the following. if so write the balanced chemical equation as well as the net ionic equation. Phases are all required for all species.
When 50.0 mL of water containing 0.50 mol HCl at 22.5°C is mixed with 50.0mL of water containing 0.50 mol NaOH at 22.5°C in a calorimeter, the temperature of the solution increases.
1 Liter H2O with a pH of 7. How much acetic acid (C2H4O2 with K=1.8 x 10^-5 and M.W. of 60.05g/mole) needs to be added to lower the pH of the water to 3
When the atmospheric pressure is 1050 , what is the absolute pressure (in ) in the tank if the height of the mercury in the open tube is 25.0 higher than the mercury in the tube connected to the tank
For each reaction, use the solubility rules as well the equations in the background information to predict if there is a reaction, If there is no reaction indicate so by writting NR under predictions, write gas for gas formation and PPT for precip..
Explain the chemical process that occurred in his muscle cells to cause this discomfort. Explain the chemical reaction that has taken place in the body after exercise.
Compare and contrast these methods of extraction- Solid phase extraction, liquid liquid extraction, Supercritical fluid extraction, Derivatization, and solid-phase microextraction
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