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Use Huckel molecular orbital theory to answer the following questions. Express energies as functions of the parameters α and β.
a) Write down the secular determinant and calculate the π molecular orbital energy levels of ethene.
b) Calculate the π electron energy of ethene
Phosgene, COCl2, is the chemical warfare gas commonly called mustard gas. It decomposes as written below. At 900 C, the Kc= 0.83. Assume 0.400 mol of COCl2 are admitted into a 2.00 L container at 900C.
calculate the mass kg of the solute c4h8o and the volume ml of the solvent c6h6 that should be combined to generate
Calculate the density of hydrogen bromide gas (in g/L) at 733 mm Hg and 47 degrees Celsius
Give the overall reaction for the dehydration of cyclohexanol.2. IR spectroscopy will be used to verify the isolated compound is the correct compound (cyclohexene). What stretches (presence and absence) will distinguish the product
What salt is formed from the neutralization reaction between perchloric acid and potassium hydroxide
Calculate the pH of a solution that is 1.20×10^?3 M in HCl and 1.00×10^?2 M in HClO2. Express your answer using three decimal places
The IR spectrum of HCN shows 3 absorption bands at 3312 cm^-1, 2089 cm ^-1, and 712cm^-1. From this info alone can you deduce whether HCN is linear or not? Explain.
100 million automobiles, each containing kg of CFC-12 (CF2Cl2). If each of them releases 25% of its CFC-12 into the atmosphere per year how much cl in kilograms is added to the atmosphere
A syringe containing 1.55ml of oxygen gas is cooled from 95.3C to 0.0C. What is the final volume of oxygen gas
In a lab experiment demonstrating Beer's law, the absorbance of a 0.15 M sample of solution A was 0.750 at the wavelength of maximum absorbance. What is the molar absorptivity (extinction coefficient) if the path length is 1 cm
One of the ways catalysts increase reaction rates is by A. Providing a surface for the reaction to occur. B. Increasing the activation energy requirement of the reaction.
How much .0100 M HCl is required to titrate 250 mL of .0190 M Na2CO3, and how much .0100 M HCl is required to titrate 250 mL of .0190 NaHCO3
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