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List four types of absorptions as well as their approximate wave number that you would expect to determine in the IR spectrum of guaifenesin.
An excited hydrogen atom with an electron in the n=5 state emits light having frequency of (6.9 x 10^14)(s^-1). what is the principle quantum level for the final state in this electronic transition
best describes the self-sustaining process of fission with a critical mass of uranium-238?
Important information about Nitration, Explain why nitration of 1,4-dichloro-benzene yields the mononitro derivative while N,N'-diacetyl-1,4-phenylenediamine forms
It takes 254kj/mol to eject electron for a certain metal surface. What is the longest wavelength of light that can be used to eject electrons from the surface of this metal via the photoelectric effect.
The atomic mass of element X is 33.42 amu. A 27.80 g sample of X combines with 90.10 g of another element Y to form a compound XY. Compute the atomic mass of Y.
Solid NaI is slowly added to the solution that is 0.010 M in Cu and 0.010 in Ag a) which compound will begin to precipitate first? b) calculate Ag when CuI just begins to precipitate? c) what precipitate of Ag remains in the solution at this point..
If the rate of effusion of a particular gas was measured and found to be 20.0mL/min. Under the same conditions the rate of effusion of pure methane (CH4) gas is 47.4mL/min. Explain what is the molar mass of the unknown gas(g/mol)
To a solution containing both acetic acid and sodium acetate, HCl is added. Beside hydroxide ions, which species will react with the extra protons from HCl to keep the pH from changing
The solubility of AgCl(s) in water at 25 degrees celsius is 1.33x10^-5 mol/L and its change in enthalpy of solution is 65.7 kJ/mol
How many grams of liquid sodium (minimum) are needed to absorb 4.70 MJ of energy (in the form of heat) if the temperature of the sodium is not to increase by more than 10.0 °C?
The compound 1-iodododecane is a nonvolatile liquid with a density of 1.20g/ml. the density of mercury is 13.6g/ml. what do you predict for the hight of a barometer column based on 1-iodododecane, when the atmospheric pressure is 752 torr
State reacting showing how nylon can be synthesized thus that it will react with (a) basic dyes and (b) acidic dyes.
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