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You have been asked to review the calculations of an assistant with respect to the calculation of the internal energy of CO2. The assistant looked up the enthalpy of CO2 at 600 kPa and 283K (16,660 kJ/g mol), and then calculated on the basis of 1g mol pV = zRT so U = H- pV = H-zRT is this calculation correct?
Why E2 is favored over SN2, Sn2 requires a strong nucleophile while E2 requires a strong base. But relatively compared if you have a very strong base the E2 is preferred. Why is it so?
A mixture of NaCl and NaBr has a mass of 2.05 and is found to contain 0.72g of Na. What is the mass of NaBr in the mixture?
What is the total work (in joules) in going from the initial to the final state by way of the preceding two steps? What would be the total work if the process were carried out reversibly?
a 45- piece of ice at 0 is added to a sample of water at 20. all of the ice melts and the temperature of the water
Draw the structure of an alkane or cycloalkane that has more than three but fewer than ten carbon atoms, and only primary hydrogens.
Mathematically determine which acid contributes a larger concentration of H3O+ ions into the solution, be sure to report the H3O+ concentrations for both, label them clearly, and identify which substance creates a larger concentration?
the freezing point of pure camphor is 178.4 degrees C, and its molal freezing-point constant, Kf, is 40.0 degrees C/m. Find the freezing-point of a solution containing 3.00 g of a compound (molar mass=125 g/mol) dissolved in 45.0 g of camphor
Calculate the enthalpy change in oxidizing this mixture in air if the reactants are at 298 K and the products are at 1200 K.
How many moles of H3O+ must be added to one liter of a solution to adjust the pH from 7.90 to 6.16? Use E notation and 3 significant figures.
Draw all of the stereoisomers that result when (E)-but-2-ene is hydrogenated with D2 over a metal catalyst.
The compound Mg(OH)2 is basic, but Si(OH)4 is an acid (silicic acid). Why? Select all that apply. 1. The OH groups attached to the silicon atom in Si(OH)4 strengthen the OH bond so that a hydrogen ion dissociates when the compound is dissolved in ..
assume two 200.0-l tanks are to be filled separately with gases helium and hydrogen. find mass of each gas is required
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