Suppose you are analyzing your standard solution (mixture of theobromine, caffeine and vanillin) using two different mobile phases. Mobile phase A is 80% solvent A (3% Acetic acid in water) 20% methanol, while mobile phase B is 80% solvent A 20% acetonitrile. What will be the expected difference in the HPLC chromatographs
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For the reaction shown, calculate how many moles of no2 form when each of the following completely reacts. 2n2o5(g)→4no2(g)+o2(g) part a 1.0 mol n2o5 express your answer using two significant figures. nothing mol m o l request answer part b 5.4 mol n2o5 express your answer using two significant figures.
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An atom with 7 protons, 6 neutrons, and 7 electrons has an atomic mass of amu. (enter a whole number.) numerical answers expected! answer for blank 1:
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Ajet plane is speeding down the runway during takeoff. air resistance is not negligible. identify the forces on the jet.
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Suppose you are analyzing your standard solution (mixture of theobromine, caffeine and vanillin) usi...
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