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part A )
High-pressure liquid chromatography (HPLC) is a method used in chemistry and biochemistry to purify chemical substances. The pressures used in this procedure range from around 500 kilopascals (500,000 Pa) to about 60,000 kPa (60,000,000 Pa). It is often convenient to know the pressure in torr. If an HPLC procedure is running at a pressure of 4.24×108 Pa , what is its running pressure in torr?Express the pressure numerically in torr.
Part B)
If the volume of the original sample in Part A (P1 = 622 torr , V1 = 34.0 L ) changes to 67.0 L , without a change in the temperature or moles of gas molecules, what is the new pressure, P2?Express your answer with the appropriate units.
Explain what would the overall outcome of the Michaelis Menten parameter determination be if the concentration of the enzyme was increased by 2.5 fold
How did I get a greater than 100% recovery of benzoic acid?, To quickly summarize, the lab dealt with isolating benzoic acid from a mixture via chemically active extraction.
Silicon has doped with 10^17 phosphorus atom cm^-3 at room temperature. a) Calculate the carrier concentrations.
Water gas, a mixture of carbon monoxide and hydrogen, is produced by treating carbon (in the form of coke or coal) with steam at high temperatures.
the molar heats of combustion of three hydrocarbon gases arech4 methane- 890.0 kjmolc2h6 ethane- 1560.0 kjmolc3h8
Problem- Physiological saline, NaCl solution used in intravenous injections has a concentration of 0.90 % NaCl (mass/mass). How many grams of NaCl are needed to prepare 500. mL of this solution (assume the density of the saline solution is 1.0 g/m..
a retro calculation of the amount of Ni(Nh3)6Cl2 that is needed if 20mL of 0.10M HCl are used to neutralize ammonia. The number I got was 0.07727 g.
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question how many average collisions with hydrogen nuclei would a 1 mev neutron need to undergo before it becomes a
Calculate the heats of combustion for the following reactions from the standard enthalpies of formation listed in Appendix 3. (?H°f (HgO(s)) = -90.7 kJ/mol and ?H°f (FeO(s)) = -272 kJ/mol.)
Compute the pH of a buffer solution prepared by dissolving 4.2 g of NaHCO3 and 5.3 g of Na2CO3 in 0.20 L of water. Explain will the pH of the solution change if the volume is increased by a factor of 10? Explain.
Explain the valences for each, showing what may happen to the electronic structure in each case
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