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(a) Explain the general idea of the LCAO-MO method.(b) What is the minimal set of functions necessary to describe water in the LCAO-MO method?(c) Propose a molecular orbital scheme for water, including both core and valence orbitals. Show sufficient work to make clear your reasoning.(d) Perform a minimal basis set MO calculation on water. Compare the calculated results with your MO scheme proposed in (c) and comment on any differences.(e) Using the computational result from (d) and Koopmans' theorem, predict the complete photoelectron spectrum of water. Compare your calculated prediction with published experimental photoelectron spectra and comment on any differences.
If each mole of gas occupies 55 L under the conditions of the explosion, how many liters of gas are produced? c) how many grams of N2 is produced in the detonation?
calculate the volume of a 2.50M acetic acid solution that will be neutralized by 15.00mL of a 4.00 M NaOH solution
calculate enthalpy change for the quantity of zinc reacted. Be sure to follow the significant figures convention in the answer you report.
Volume increases isothermally? Two pure gas species are mixed at constant temperature? Temperature increases isobarically? Pressure increases isothermally?
Check out the structure and pertinent physical properties of THF versus diethyl ether. What necessitated the use of THF?
An appropriate indicator is used. Ka for acetic acid is 1.7x10^-5. Calculate the pH in the flask after 300 mL of 0.100 M NaOH has been added
If, in a certain experiment, over a specific time period, 0.0039 mol PH3 is consumed in a 1.8-L container each second of reaction, what are the rates of production of P4 and H2 in this experiment?
A solution containing 100g of an unknown substance and 900g of water. The solution has a Freezing Point of -3.33*C. What is the molar mass of the substance?
A bicycle tire is filled with air to a pressure of 75 psi at a temperature of 19 degrees celcius. Riding the bike on asphalt on a hot day increases the temperature of the tire
Given a solution of .1 M HEPES in its fully protonated form, and ready access to .1M HCl, .1M NaOH, and distilled water. Describe the preparation of 1L of .025 M HEPES buffer solution, pH 7.8?
The major product of the acid-catalyzed dehydration of heopentyl(2,2-dimethyl-1-propanol) has a different carbon skeleton than that of the starting alcohol
Calculate the concentrations of all species in a 1.66 M Na2SO3 (sodium sulfite) solution. The ionization constants for sulfurous acid are Ka1=1.4x10^-2 and Ka2=6.3x10^-8.
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