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Determine the maximum fraction of the unit cell volumethat can be filled by hard spheres in the simple cubic structure. Assume that a is the lattice constant.
Based on the chemistry of an ion-exchange chromotography describe how you will calculate Mpc for your water samples.
How will understanding the stoichometry of a chemical reaction affect your determination of a rate law
The activation energy of a certain reaction is 50.0 . At 22 , the rate constant is . At what temperature in degrees Celsius
Calculate the total salt concentration (in mole litre-1) of a cup of soup assuming that both the sodium and potassium are added as chloride salts. What is the concentration of chloride in gram per 100 mL?
A1.15 g sample of dry ice is added to a 765 mL flask containing nitrogen gas at a temperature of 25.0 C and a pressure of 715 mm Hg.
a volume of 125 ml of rm h2o is initially at room temperature 22.0rmcircc. a chilled steel rod at 2.00rmcircc is placed
Nitrosyl bromide, NOBr, is 34 percent dissociated at 25 deg. C and the total pressure is 0.25 atm.
Write an equation for the ionization of each of the following amines in water. Consider if you need a double or single arrow ethylamine
Give the structure of a compound that has a formula of C6H12O and has a triplet (3H 1.1ppm), doublet (6H, 1.2 ppm), quartet (2H 2.4 ppm) and septet (1 H,2.7ppm ) in the 1H NMR spectrum? Please explain how you figured it out.
the successive ionization energies of a certain element arei1 589.5 kjmol i2 1145 kjmol i3 4900 kjmol i4 6500 kjmol
The complete combustion of pentane yields carbon dioxide and water. When the equation C5H12(l) + O2(g) ? CO2(g) + H2O(l) is balanced, the ratio of the coefficient of CO2 to the coefficient of O2 is
How much heat (in J) is evolved or absorbed when a 36.9 g sample of water (specific heat = 4.18 J/(g K)) cools from 87.7oC to 79.2oC
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