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Match the detector or detectors that can be used in gas chromatography for the detection of the following list of analytes. (More than one detector may be appropriate for a given analyte, and a given detector may be appropriate for more than one group of analytes.)
1) compounds ionized by UV radiation.
2) Sulfur or nitrogen containing compounds.
3) Halogenated compounds
4) Nitrogen & phosphorous containing compounds
5) Hydrocarbons
thermionic, electrolytic conductivity, photoionization, flame ionization, electron capture, thermal conductivity, mass spectrometer
Important information about Liquid Crystals, Are there differences between the cholesteryl benzoates and the cholesteryl esters having long carbon chains?
Describe an experiment you could do to measure the lateral diffusion of a protein in the plane of the membrane. How can you use the data from such an experiment to aid in getting information
A 12-liter tank contains helium gas pressurized to 160atm . What size tank would be needed to contain this same amount of helium at atmospheric pressure (1atm )?
How many milliliters of an aqueous solution of 0.180 M manganese(II) bromide is needed to obtain 12.8 grams of the salt ?
Write reaction equations to explain how your acetic acid/sodium acetate buffer reacts with an acid and reacts with a base.
Draw the conj acid of this base and use its structure to explain why it is so basic (resonance forms may help). The pKa of the conj acid is about 26. What is the pKb of the free base?
Suppose the radius of an atom in a simple cubic unit cell is 0.27 nm. What is the edge length of the unit cell in nm.
A buret containing NaOH solution has an initial reading of 0.14ml. 25.00ml of 0.1000M HCl is titrated to a phenolphthalein end point,
what mass of solid sodium formate (of mw 68.01) must be added to 105 ml of 0.55 mol/l formic acid(HCOOH) to make a buffer solution having a ph of 3.96? ka=0.00018 for HCOOH
Calculate the molarity of the hydroxide ions in a solution that has been prepared by dissolving 88.7 g of barium hydroxide
In a particular titration experiment a 25.0 mL sample of an unknown monoprotic acid required 30.0 mL of .200 M NaOH for the end point to be reached
A certain gaseous oxide of sulfur has an effusion rate that is 0.707 times the effusion rate of oxygen gas
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