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Use the valence bond thoery to determine whether the complex ion CoCl4^2- is a square planar or tetrahedral. measurements of its paramagnetism show that it has three unpaired electrons
In the synthesis of benzoic acid rom CO2 and the phenylmagnesium bromide, benzene is often detected as a impurity, how does this come about
What do the density/potential plots demonstrate about bond order?
Use this equation to calculate the wavelength of the photon emitted in units of nanometers for the following transitions.
A gas sample was collected over water at 25.3 degrees C. The total pressure is determined to be 0.97 atm. What is the partial pressure of the gas that was collected
How much PV work is done (in kilojoules) and what is the value of deltaE (in kilojoules) for the reaction of 6.50g of acetylene at atmospheric pressure if the volume change is -2.80 L?
eject electrons from a mixed alkali metal photocathode, what is the longest wavelength in nm of light necessary to eject these electrons by the photoelectric effect?
If 100. grams of liquid water at 100.0 C and 200. grams of water at 20.0 C are mixed in an insulated container, what will be the final temperature of the water? The specific heat of water is 4.18 J/g
Addition of a catalyst lowers the activation energy by 15.0 kJ/mol. By what factor (k catalyzed/ k uncatalyzed) does the rate increase at 25 °C?
What are the pressures, temperatures, enthalpies, and mass densities of the substance at the beginnings and ends of the processes?
An astronaut's spacesuit has a pinhole leak. If the spacesuit contains air of normal composition (78% nitrogen and 21% Oxygen),
It takes 48.0 to raise the temperature of an 9.10 piece of unknown metal from 13.0 to 25.0. What is the specific heat for the metal?
How would you prepare 1.0 ml of a 0.6 mg/ml protein sample from a 1.0 mg/ml protein stock solution in a given phosphate buffer? b) 1 ml of water and 1.0 ml of a solution "x" mixed together is a 1:2 dilution of "x" in water.
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