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Explain why is longitudinal diffusion a more serious problem in gas chromatography than in liquid chromatography?
Write balanced half-reactions and the overall spontaneous reaction. (Type your answer using the format [NH4]+ for NH4+. Use the lowest possible coefficients.)
What is the relative kinetic energy between the electron and proton after ionization, that is r=infinity? C) Assume that the electron has all the kinetic energy in part
1.2 kg of liquid water initially at 15 degrees clecius is to be heated to 95 degrees celcius in a teapot equipped with
Glass will dissolve in concentrated solutions of either NaOH or KOH. At 25C the two reactions below tae place at the same rate. 4NaOH + SiOH2 -->Na4SiO4 + 2H2O is reaction 1. reaction 2 is 4KOH + SiO2 ---> K4SiO4 + 2H2O
Another hypothetical molecular compound, Y 2(g), has a bond energy of 750 kJ/mol, and the molecular compound XY(g) has a bond energy of 1500 kJ/mol. Using bond-energy information, calculate ?H for the following reaction:
In an aqueous environment, will the peptide fragment Leu-Ala-Gly-Pro-Phe-Ser-Val more likely be buried inside a globular protein or located on its surface
Relation between Reaction Velocity and Substrate Concentration: Michaelis-Menten Equation. At what substrate concentration would an enzyme with a kcat of 30.0 s1 and a Km of 0.0050 M operate at one-quarter of its maximum rate
Calculate the equilibrium concentration of each compound if 3.10 moles of COBr2 are placed in a 3.00 liter flask at a certain temperature. Kc = 0.140 for the reaction at this temperature.
Calculate the equilibrium constant for the reaction. The standard enthalpy change delta H, for a strong acid-strong base reaction is -57.8k J. Determine the standard entropy change delta S for the reaction at 25 degrees C.
a sealed balloon is filled with 1.30 l of helium at 23degc and 1.00 atm. the balloon rises to a point in the atmosphere
How much heat energy is liberated when 11.0 grams of manganese is used in the formation of Mn2O3. PHf° for Mn2O3 is -962.3 kJ/mol
equilibrium at 25C with 5.82L of an aqueous solution of N2O(aq). what is mass of N2O whic is disssolved?
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