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A certain second-order reaction ( B--> product) has a rate constant of 1.50×10?3 M-1*S-1 at 27C and an initial half-life of 214s. What is the concentration of the reactant B after one half-life
Determine the Keq for the reaction of benzoic acid with 4-nitroaniline.
how many grams of urea must be added to enough water to obtain 115 ml of a solution with an osmotic pressure of 2.7 atm at 35 degrees celsius
At constant pressure and 25 degrees celcius a sample of gas occupies 4.5 liters. At what temperature will the gas occupy 9.0 liters?
A 125 mL sample of dry air at 230 degrees celcius is cooled to 100 degrees celsius at constant pressure. What volume will the dry air occupy at 100 degrees celsius.
Nitrogen gas reacts with oxygen gas to produce nitrogen monoxide in an endothermic reaction. When the temperature of the reaction at equilibrium is raised, the equilibrium will shift
A solution containing sulfide ions is added to selectively precipitate one of the metal ions from solution. At what concentration of sulfide ion will a precipitate begin to form? What is the identity of the precipitate?
To prepare a fertilizer, an engineer dilutes a stock solution of sulfuric acid by adding 20.9 L of 6.50 M acid to enough water to make 500. L.
Also calculate the pressure in atmospheres using the van der Waals equation. For N2, a=1.35 (L^2?atm)/mol^2, and b=0.0387 L/mol.
The more water molecules, the more intermolecular forces formed, the more energy released when ions dissolve in water. How does the periodic trend of cation radius for the alkali chloride solids compare to the number of water molecules that can fo..
The peak was assigned as a Mn-Cl stretching mode of a contaminate manganese chloride species. Why would you expect this to be an erroneous assignment? Suggest a more likely source of this IR absorption.
Use the particle-in-a-one-dimensional-box model to calculate the longest-wavelength peak in the electronic absorption spectrum
the vapor pressure of water at 90.0 is 526.8mm hg what mass of ethlene glycol (mw 62.7gmol) when added to 1.50 kg of warer will lower the vapor ptessure
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