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A proton in a magnetic field has two spin states, one aligned with the field B and the other anti aligned. the energies of these spin states are E down=hyB/2 and E up =-hyB/2, where y=26.8*10^7 (Tesla)^-1.
why would the chemiluminscence be more pronounced than with the flask stoppered? why is the chemiluminscence even more pronounced with the ferriccyanide/hydrogen peroxide mixture?
Need to make an aqueous solution of 0.233 M potassium iodide for an experiment in lab, using a 250 mL volumetric flask. How much solid potassium iodide should you add?
Write balanced equations for the reactions pf phenylmagnesium bromide and trityl fluoborate with water
At constant volume the heat of combustion of a particular compound is 3506kj/mol. when 1.831g of this compound was burned in a bomb calorimeter, the temperature of the calorimeter rose by 4.833 degree cellcius. what is the heat capacity of the cal..
Why should EH&S and FS professionals avoid inhaling the smoke produced when tar paper and roofing shingles smolder and burn?
the dissolution of nh4clo4 in water is endothermic with change of h33.5kjmol. if you prepare a 1.00m solution of
Calculating Volume, Pressure & Density, Calculate the density, in g/L, of SO2 at 75°C and 1.33 bar. (Round your answer to two decimal places)
the enthalpy change for the reaction of hydrogen gas with fluorine gas to produce hydrogen fluoride is -542 kj for the
The fluorescence spectrum of anthracene vapor in the figure shows peaks with maxima at 440 nm, 410 nm, 390 nm, and 370 nm, whereas the absorption spectrum has peaks at 360 nm, 345 nm, 330 nm, and 305 nm.
Calculate the concentration (molarity) of iron in a dilutedsolution if 5.00 mL of 5.0x10^-4 M Fe(NH4)2(SO4)2 6H2O isdiluted with water to 100.0 mL.
Liquid water is fed to a boiler at 24°C and 10 bar and is converted at constant pressure to saturated steam. While operating, this process produces 10,000 m3/h of steam, which is discharged through a pipe with an inner diameter of 10 cm.
He was surprised that most of the white solid melted sharply between 121 and 122 C but that a small amount remained unmelted even at temperatures above 200 C. Explain this behavior.
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