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Hydrogen displays an emission line in the infrared region of the spectrum at 1875.6 nm. Determine the values of n for the two energy levels that are responsible for this emission.
the isomerization of cyclopropane to form propenenbsp is a first-order reaction. at 760 k 85 of a sample of
A 145 g aluminum cylinder is removed from a liquid nitrogen bath, where it has been cooled to -196° C. The cylinder is immediately placed in an insulated cup containing 226 g of water at 15.0° C,
Calculate the number of moles in each of the following: a) 85.2 g of Ni, b) 144 g of K, c) 6.4 g of H2O, d) 308 g of BaSO4, e) 252.8 g of fructose C6H12O6
What organic product would be formed upon treatment of dl-stilbene dibromide with NaI in acetone? How could you prove that this product if formed?
If a system consists of two subsystems, one with 5 microstates and one with 10 microstates, how many microstates are in the whole system?
A certain reaction has an equilibrium constant of 300 at 25 degrees celsius and 309 at 35 degrees celsius. What is deltaH^0 per mole for this reaction
A solution contains 1.0 x 10-5 M Na3PO4. Calculate the minimum concentration of Ag+ that would cause precipitation of solid Ag3PO4.
Calculate the molar solubility of Ca(IO3)2 in each solution below. The Ksp of calcium iodate is 7.1x10^-7. a.) 0.065 M Ca(NO3)2 b.) 0.065 M NaIO3
Potassium nitrate has a lattice energy of -163.8kcal/mol and a heat of hydration of -155.5kcal/mol. How much potassium nitrate has to dissolve in water to absorb 117kJ of heat
What total volume of ozone measured at a pressure of 29.0mmHg and a temperature of 234k can be destroyed when all of the chlorine from 16.5g of CF3Cl goes through ten cycles of the above reactions
A particular sports drink contains about 300 ppm sodium by mass. How many milligrams of sodium would be in an 8 oz. bottle of this beverage. Assume the density of the sport drink is 1.14 g/ml.
Which of the following combinations of peaks appears in the 1H NMR spectrum of diethyl ether, CH3CH2OCH2CH3? a. a triplet and a doublet b. a quartet and a sextet c.
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