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A simple cubic unit cell is composed of identical spherical particles with a diameter of 75 pm.
What is the volume of the unit cell?
What is the pH of a 0.75 M NaOH solution at 60°C. The equilibrium constant Kw for water at 60°C (333 K) is 9.60 x 10E-14.
Using the relationship between energy and wavelength (Beer's Law), explain which direction (higher wavelength or lower wavelength) the (max wavlength) will be found for butene compared with that for a butadiene
say you removed an ice cube at -10 ordmc weighing 36 g from your freezer. now you place the ice cube in a 90 g sample
Ionization energy is the energy needed to eject an electron from an atom. Compute the ionization energy of a hydrogen atom in its third excited state (n = 4).
How do old dispersive infrared (IR) instruments use a grating to separate the infrared source by wavelength before passing through the sample?
Find the pH and volume (mL) of 0.0372 M NaOH needed to reach the equivalence point(s) in titrations of 20.0 mL of 0.0892 M H2SO3 (two equivalence points)
How many liters of H_2 would be formed at 704 mm Hg and 14 degrees C if 21.5 g of zinc was allowed to react?
Determine the atomic packing factor (APF) of the simple hexagonal crystal structure assuming the lattice parameter a is equal to 2R and the lattice parameter c is equal to 1.5 a. Assume one atom on each lattice point
note the lewis structure h3o. highly electronegative atos often have a partial negative charge on them. negative formal
What is the maximum amount of ethanol (in millimoles) that could theoretically be produced under the following conditions?
You are about to perform a reaction that requires 1.25 mol of CaCl2 to go to completion. The solution available in the stock room has a concentration of 33 % w/v. How many mL of this solution will you need to use? A. 46 mL B. 420 mL C. 0.034 mL D...
The first step in the Stork Enamine Reaction (an enamine contains an alkene functional group and an amine functional group) is the formation of a new carbon-carbon bond between the enamine and CH3X, as shown below: (NOTE, SYMBOLS ABOVE AND BELOW A..
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