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A solution containing toluene had a gas chromatographic peak area of 412420. While 0.7130g of this solution was spiked with 0.0178g of pure toluene, the signal was 731508. Explain what is the concentration of toluene in the original solution? Mass % is the recommended unit to use.
A reaction of importance in the formation of smog is that between ozone and nitrogen monoxide is described as: O3(g) + NO(g) ---> O2(g) + NO2(g)
the mass of an empty container is 76.35g. the mass of thecontainer when filled with an unknown liquid d1.25gml
Which of the following is a forbidden transition? please give a brief explanation why you chose your answer a) L=3 m=2; l=2 m=2 b)L=3 m=2 ;l=2m=0 c) L=3m=2; l=4 m=3 d) L=3 m=2; l=2m=1
Looking at the colors of the mixtures containing 5.0, 6.7, and 7.5 mL of EN, would you conclude that you prepared one, two, or all three complex ions when you combined the various mixtures of 2.0 X 10-2 M CuSO4 and 2.0 X 10^-2 M EN
in covalent molecules some valence electrons are shared and others are not. what are these types of electrons called?
Find the value of Kc for the reaction 2 CH4(g) C2H2(g) + 3 H2(g) at 1700 °C if the initial [CH4] = 0.115 M and the equilibrium [C2H2] = 0.04 M.
If 2.00 g of isopentyl alcohol is reacted with 10.0 mL of acetic acid and 2 drops of sulfuric acid, what is the theoretical yield? Report your value to TWO decimal places (x.xx g).
The radioisotope 224Ra decays by a emission primarily to the ground state of 220Rn (94% probability) and to the first excited state 0.241 MeV above the ground state (5.5% probability). What are the energies of the two associated a particles
a skyscraper in pittsburgh built in the early 1970s is supported by water filled columns. potassium carbonate was added
reaction does k decrease over time what about in a 0 and 1 st order reaction. In a second order reaction does the half life increase over time what about in a 0 and 1 st order reaction?
Calculate the mole fraction and partial pressure of each gas, and the total pressure in the tank. a) Boron trifluoride - mole ratio - partial pressure b) Sulfur hexafluoride -mole ratio -partial pressure
You have also been informed that an insect infestation has just decimated your supplier's banana crop and you are now as well needed to synthesize the ester, 3-methylbutyl ethanoate, responsible for the scent of the banana. Depict the skeletal str..
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