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The pi-electron system of naphthalene may be treated using the ''particle-in-a-box'' approximation, where the molecule may be considered to be a 400 X 700 pm two-dimensional container.
(a). Determine the energies of ten lowest energy levels for this system.
Calculate the energy produced when 15 grams of liquid methanol (CH3OH) is completely burnt in air to produce carbon dioxide gas
The Standardized solution of NaOH is used to titrate a solution of HCI. Write the balanced equation for this reaction. Calculate the molarity of the HCl solution.
Molybdenum crystallizes in a body-centered cubic lattice (the Mo atoms are at the lattice points only). If the density of the metal is 10.3 g/cm3, what is the unit cell edge length in pm?
Write as a superposition of 3 eigenstates, indicating the numerical value of each coefficient. Using the coefficients, demonstrate that is normalized.
what would you expect to observe if KHCO3 reacted with H2SO4? what test would you perform to identify the product?
how much of the excess reactant remains after the limiting reactant is completely comsumed?
If 18.6 of 0.800 solution are needed to neutralize 5.00 of a household ammonia solution, what is the molar concentration of the ammonia?
What organic product(s) is formed when 1-methylcyclopentanol is heated in the presence of an acid catalyst?
A running automobile produces CO at a rate of 188g CO per hour. A car is left idling in a garage 5.2m long, 4.0m wide, and 2.2 m high at 20 degrees C. How long would it take to build up a lethal concentration of CO of 1000 ppmv?
A 280 mL stock solution contains 2.3 M Ca(CN)2. When 105 mL of the stock solution is diluted to 120 mL, how many moles of CN- ions will be contained in the dilute solution?
2C4H10 + 13O2 → 8CO2 + 10H2O The equation shows the combustion of butane (C4H10). How many moles of water can be produced by 12.5 moles of C4H10 with excess oxygen?
at 986°C is 0.63. A rigid cylinder at that temperature contains 1.2 atm of carbon monoxide, 0.20 atm of water vapor, 0.30 atm of carbon dioxide, and 0.27 atm of hydrogen. Is the system at equilibrium?
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