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The principle quantum number defines the shell (which is roughly, but not quite exactly, the row, or period, of the periodic table). Demonstrate the difference between the rows of the periodic table and the shells defined by the principle quantum number by calculating the number of electrons in the n = 1, n = 2, and n = 3 shells and comparing those with the number of electrons in the noble gases Helium, Neon, and Argon.
Trimyristin is one of a number of natural products found in nutmeg, including the one which gives it its characteristic odor. Bases on the chemical properties of trimyristin and the amount of inpurity found when the extracted trimyristin was re-cr..
A fluoridated water supply contains F- at a concentration of 8.9 ppm. What is the maximum concentration of Mg2+ that can exist in this water supply without causing precipitation? The Ksp for MgF2 is 6.4×10-9. Answer in units of grams/L.
Define Ideal gas law, Calculate the free energy of mixing when 1 mole of liquid A is mixed with 4 moles of liquid B at 25 degrees C to form an ideal solution. What is the change in chemical potential of component A?
Is the dissolution of borax in water a temperature dependent reaction or is it spontaneous at all temperatures at which water is liquid?
When C2H5OH +3O2 produces 2CO2 + 3H2O,determine how many grams of oxygen gas are essential for complete combustion of 421grams of ethanol ?
What mass of HCl is contained in 30.0ml of a solution solution which is 37.2 mass% HCl has a density of 1.19g/ml.
A reaction mixture at 175 initially contains 522 torr of NO and 421 torr of O2. At equilibrium, the total pressure in the reaction mixture is 748 torr. Calculate Kp at this temperature.
What is the change in internal energy of the system, with the system regarded as the CD player alone? Assume that the battery does 500 kJ of work on the CD player, which then does the same amount of work on the surroundings.
Calculating Volume Needed for Level of pH, A 1.00g sample of benzoic acid (C6H5CO2H, FW = 122.12g/mol,Ka = 6.5 x 10^ -5) is dissolved in water to give a solution with a volume of 500mL.
A sample of helium gas, He, at 22 degrees C and 101.3 kPa occupies a volume of 2.54L. At a constant pressure, what volume will it occupy at a liquid nitrogen tempature of -197 degrees C?
The reaction of 2.30g N2 with excess H2 produces 2.00g NH3. The percent yield of this reaaction is?
When the gas is not flowing the pressure is the same everywhere in the pipe. How high above the bottom of the manometer would the mercury be in the am connected to the pipe?
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