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In the experiment of Purcell and Pound, the maximum magnetic field strength was 0.63 T and the initial temperature was 300 K. Pretending that the lithium nuclei have only two possible spin states (in fact they have four), calculate the magnetization per particle, MIN, for this system. Take the constant μ to be 5 x 10-8 eV/T. To detect such a tiny magnetization, the experimenters used resonant absorption and emission of radio waves. Calculate the energy that a radio wave photon should have, in order to flip a single nucleus from one magnetic state to the other. What is the wavelength of such a photon?
what are the boiling point and freezing point of a 2.47m solution of naphthalene in benzene? the boiling point and
When iron(III) oxide reacts with hydrochloric acid, iron(III) chloride and water are formed. How many grams of iron(III) chloride are formed from 10.0 g of iron(III) oxide
How many grams of K2SO4 are there in 243 grams of an aqueous solution that is 28.7 % by weight K2SO4.
A compound is constituted by mass of 52.1% carbon and 13.1% hydrogen, the rest being oxygen. Given that a volume of 5.33 L of this gas has a mass of 11.5 g at 13 °C and 110 kPa, find the molecular formula for this compound.
graph this phase change,with energy as a function of temperature.Do not assume that the eteam is an ideal gas. ?H fus=334.0 j/g ?H vapeur =2260 j/g Ch2o solid=2.11 j/g.k Ch2o liquid=4.18 j/g.k Ch2o gas=2.08 j/g.k a=5.464l62 bar/mol b=0.03049L/mol
Calculate the pressure in atmospheres using both the ideal gas law and the van der Waals equation. For N2, a=1.35(L^2 x atm)/mol^2, and b=0.0387L/mo
Compute the equilibrium constant (Keq) for the reaction of equimolar amounts of acetophenone as well as sodium hydroxide to generate the enolate
A 25.0 ml solution of .0600 M EDTA was added to a 57.0 ml sample containing an unknown concentration of V3+. All V3+ present formed a complex, leaving excess EDTA in solution.
A cobalt compound has an observed magnetic moment of 5.2 B.M. What can you deduce about the compound?
a) Explain the mechanism of formation of the products. b) Explain the relative proportion of the products on the basis of their structures.
If it takes 30.0 mL of 0.0250 M K2Cr2O7 to titrate 15.0 mL of a solution containing Fe2+, what is the molar concentration of Fe2+?
A hydrogen atom in its ground state absorbs a UV photon at a wavelength of 93.8 nm. It then re-emits a photon as it relaxes to the n=2 energy level.
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