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Calculate the energy of a photon of electromagnetic radiation at each of the following frequencies (in J). 1. 103.7 MHz (typical frequency for FM radio broadcasting) 2. 1100 kHz (typical frequency for AM radio broadcasting) (assume four significant figures)
Calculate the percentage of He atoms at 100oC which have speeds in the range between 1200 m/s and 1300 m/s. Calculate the percentage of these He atoms that have speeds greater than 5000 m/s
Assume the total heat capacity of the air C air=30 J/K. Describe what's the likely ice will ne after the system reaches equilibrium. b) Estimate theliekly final temperature after reaching equilibrium
Methanol, CH3OH, is a nonelectrolyte; acetic acid, HC2H3O2, is a weak electrolyte; and ammonium chloride, NH4Cl, is a strong electrolyte. What are the solute particles present in aqueous solutions of each compound? (Select all that apply.)
How do you solve for the molarity, molality, or mass percent of solute while only given two other bits of information
The average water loss during a triathlon is 1.40 L in one hour. The average time to finish a triathlon is 12.6 hours. How much sweat is lost in m^3?
Draw the crystal-field energy level diagram for the 3d obitals and show the placement of d electrons assuming this is a weak-field complex ion.
A rigid tank of volume 0.5 m^3 is connected to a piston cylinder assembly by a valve, as shown below. Both vessels contain pure water. They a re immersed in a constant-temperature bath at 200°C and 600 kPa
Consider various salts of octahedral complexes of Pt(IV) which, per mole of Pt(IV), contain one mole each of the bidentate ligands en and oxalate ion (ox) in the "1st coordination sphere" and, as possible monodentate ligands, SO4 2- and/or NC- and..
What mass of Sucrose(C12H22O11) should be combined with 456g of water to make a solution with an osmotic pressure of 8.05atm at 280K
What type of energy, kinetic or potential, is contained in chemicals? What aspect of chemicals is changed during a chemical reaction such that reactions relate to chemical energy?
When the epoxide 2-vinyloxirane reacts with lithium dibutylcuprate, followed by protonolysis, a compound A is the major product formed. Oxidation of A with PCC yields B, a compound that gives a positive Tollens test and has an intense UV absorptio..
the interferometer mirror of an FTIR spectrometer travels + or - 1.0 cm. Calculate the approximate resolution (cm^-1) for such a spectrometer. At what retardation interval, delta, must the interferogram be sampled to cover the spectral range of 0 ..
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