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Find out the commentator of the operators for the square of position as well as the square of momentum in the x direction. Explain what can you tell from your result
Give three examples of moisture diffusion, and explain how to prevent moisture diffusion in each case
The graph above shows the titration curves of four monoprotic acids of varying strengths. All of the acids start out at 0.1 M concentration and 25.0 mL volume. Choose all of the correct statements about these titration curves from the choices belo..
A 4.305-gram sample of a nonelectrolyte is dissolved in 105 grams of water. The solution freezes at -1.23°C. Calculate the molecular weight of the solute. Kf for water = 1.86°C/m.
The vapor pressure of pure ethyl bromide at this temperature is 400.0 torr. Assuming an ideal solution, what is the molecular mass of the compound?
A reaction has an activation energy of 32 kj/mol. If the temperature of the reaction doubles from 45 to 90 degrees by what factor will the ratio of the rate constants, k2/k1,change
under certain conditions, the combustion of charcoal (C) in the presence of o2 forms carbon monoxide (CO) according to the given balance equation.
Calculate the mass in grams of hydrogen chloride produced when 4.5 L of molecular hydrogen measured at STP react with an excess of molecular chlorine gas.
How come the reaction of terminal alkynes and alkenes with KMNO4 would yield a carboxylic acid and carbon dioxide. Why woulndn't the reaction yield a carboxylic acid and formic acid
The addition of solid NaSO4 to an aqueous solution in equilibrium with solid BaSO4 will cause what? Ksp at 20 degrees C of BaSO4(s) = 1.5 x10^-9
One thousand kg/h of an ethanol/methanol stream is to be separated in a distillation column. The feed has 40% ethanol and the distillate has 90% methanol. Eighty percent of the methanol is to be recovered as distillate. Determine the % methanol in ..
A hydrogen atom initially in the n=7 quantum state emits a photon having a wavelength of 2.16495E-6 m. What is the quantum number of the final state of the atom?
ethanol ch 3ch 2oh is mixed to gasoline to form e85 a fuel for automobiles engines. when c2h5oh 3o2 produces 2co2
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