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When X rays of wavelength 0.096 nm are diffracted by a metallic crystal, the angle of first-order diffraction (n = 1) is measured to be 15.2°. What is the distance between the layers of atoms responsible for the diffraction?
what is the difference of the KBR specrtum in % transmittance and absorbance. and btw wavenumber and wavelength
what will be the final temperature of the solution in the calorimeter? The heat of solution,delta H solution, ofCaCl2of is -82.8kj/mole.
A mixture of gases with a pressure of 800.0 mm hg contains 60% nitrogne and 40% oxygen by volume. what is the partial pressure of oxygen in this mixture?
sodium chloride dissolved in 225 g of water has a density of 1.98g/ml. Calculate the mass percentage of sodium chloride
Octane ratings are assigned to gasoline mixtures based on their ability to prevent knocking relative to isooctane. Estimate the energy released during the combustion of 1.00 mol of pure isooctane.
a steel tank with a volume of 9.583L contains N2 gas under a pressure of 4.972 atm at 31.8C Calculate the number of moles of N2 in the tank.
A compressed gas cylinder contains 1.00 x 103 g of argon gas. The pressure inside the cylinder is 2050 psi at a temperature of 18oC. How much gas remains in the cylinder if the pressure is decreased to 650psi at a temperature of 26oC?
Determine the molecular formula of the compound with molar mass 336.5g mol-1 and empirical formula C 5 H 8 O?
Draw the pictures of the overlap of the atomic orbitals to make all of the molecular orbitals and for any non-bonding orbitals as well.
The concentration of ammonium ion in the solution of the salt called ferrous ammonium sulfate
Magnesium carbonate, MgCO3, has a Ksp value of 6.80×10?6 . What happens when magnesium and carbonate solutions are mixed to give 2.50×10?3M Mg2+ and 2.00×10?3M CO3 2-?
Enzyme X is a highly pigmented protein that imparts the characteristic color to certain blue-green algae. It also facilitates a reaction necessary to the survival of this species
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