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Some liquid samples cannot be injected directly into an HPLC system because they could either damage the column or the HPLC system. For these samples, solid phase extraction (SPE) is used prior to analysis. Explain SPE? ( I have som eideas, but having a hard time keeping it short and to the point)
For the decomposition of 10.9 Pa azomethane, CH3N2CH3, at 600 K the partial pressure is found
If the partial pressure of NO is decreasing at the rate of 32 torr/min, what is the rate of change of the total pressure of the vessel?
to what pressure should you fill the acetylene tank to ensure that you run out of each gas at the same time? Assume ideal behavior for all gases.
an aqueous vinegar sample contains 4.4 acetic acid by mass and has a density of 1.006 gml. calculate the amount of
assume 2 flasks each with one litre of a saturated solution of glucosec6h12o6. one solution has one gram of
When a charge transfer electrode reaction occurs at a very slow rate, the concnetration on the surface of the electrode is ____ than the bulk concentration.
Calculate the work for the expansion of CO2 from 1.o to 6.0 liters against a pressure of 1.0 atm at constant temperature
if the reaction fe2n s 32 h2 g -gt lt- 2fes nh3g comes to equilibrium at a total pressure of 1 atm analysis of the
The molality of the solution is determined to be .0480m. What is the molar mass of the substance?
A mixture of three gases has a total pressure of 1,380 mmHg at 298 K. The mixture is analyzed and is found to contain 1.27 mol CO2, 3.04 mol CO, and 1.50 mol Ar. What is the partial pressure of Ar
Assuming that the total pressure of the gases is 1.52 atm and that their mole ratio is 94 : 4.0 : 1.5 : 0.50, calculate the partial pressure (in atmospheres) of each gas.
what is the purpose of anhydrous cacl2? why it is important that none of the solid cacl2 be included in the final
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