Type of molecular orbitals
What type of molecular orbitals does the cyclopentadienyl ligand (in a ferrocene molecule) use to bond with the iron ion? How many electron pairs does each cyclopentadienyl ligand donate to the iron ion?
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Calculate the pH of the solution formed by the addition of 55.5 mL of 0.100 M NaOH to 49.2 mL of 0.100 M H3PO4.
Show all the steps for determining the overall net ionic equation by the method of half reactions for the redox reaction of permanganate with oxalic acid. the two unbalanced half reactions are MnO4 ---> Mn2+ (COOH)2 -----> CO2
Complete the equations that illustrate bicarbonate ion's capability to function as a buffer. a) HCO3^-1 + H+ --> ? b) HCO3^-1 + OH- -->
you are making a buffer. you add 57.89g of sodium methanoate to 500.0 ml of water. The molecular mass of sodium methanoate is 68.01 g/mol. The Ka of methanoic acid is 1.8*10^-4. find the pH of the buffer.
Some atomic properties depend on the average value of 1/r rather than the average value of r itself. Evaluate the expectation value of 1/r (a) a hydrogen 1s orbital, (b) a hydrogenic 2s orbital, (c) a hydrogenic 2p orbital.
If He gas has an average kinetic energy of 4310 J/mol under certain conditions, what is the root mean square speed of O2 gas molecules under the same conditions
Sodium hydroxide has a lattice energy of -887 and a heat of hydration of -932. How much solution could be heated to boiling by the heat evolved by the dissolution of 21.5 of ?
A microwave oven operates at 2.00GHz . What is the wavelength of the radiation produced by this appliance. Express the wavelength numerically in nanometers.
What volume of water should be added to 600 mL of ethanol in order to have a solution that boils at 95 degrees Celsius?
The overall Kf for the complex ion Ag(NH3)2+ is 1.7x10^7. Ksp for AgI is 1.5x10-16. What is the molar solubility of AgI in an aqueous NH3 solution (Kb=1.8x10-5) with a pH of 12
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