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Lennard-Jones potential (also called the 6-12 potential) is often used to quantitatively describe van der Waals bonding. This potential is given by:
E = 4?[(σ/r)^12 - (σ/r)^6]
where σ and ? are constants for a given atom or a molecule.
Show that the equilibrium bond distance between the molecules is given by ro = 2^(1/6)*σ and that the bond energy (the value of the energy, E, at ro) is given by -?. (Binding energy is negative. i.e., energy decreases compared to when the components are infinitely apart.)
Choose any two temperatures and corresponding vapor pressures in the table given, and use those values to calculate Delta H vap for mercury (in kJ / mol).
Problem- If 200 ml of some Pb(NO3)2 solution is mixed with 600 ml of 1.10 x 10-2 M NaCl solution, what is the maximum concentration of the Pb(NO3)2 solution added if no solid PbCl2 forms? (Assume Ksp = 2.00 x 10-5 M at this temperature.) Enter the..
you are given a small bar of an unknown metal x. you find the density of the metal is 10.5 gcm3. another experiment
Calculate the molarity of an NaOh solution if 32.6 ml of this solution is required to neutralize 0.854g of potassium hydrogen phathalate. the molecular weight of potassium hydrogen phathalate is 204.277g/mol
What mass of ice at 0C must be added to 45g of water at 20C to cool it to the final temperature of 10C?
The atmospheric pressure 4.The volume for the vapor to occupy above the liquid 5.The temperature of the liquid
Explain how many grams of water at 25 C must be poored on the above ice no water in flask initially, if we want that-a) All the content freezes to -2 C;
1nbspassuming that gasolineis pure octane c8h18 and has a density of0.703 gml how many liters of co2nbspgas will be
Suppose that you obtain 1.0 g of salicylic acid from the hydrolysis of 1.3 mL of methyl salicylate. Calculate your percent yield.
calculate the mean free path and the collision frequency ofcarbon dioxide molecules using the collision cross-section
calculate the number of moles of the compound that could theoretically be generated. Use the value ?G°\'compound X = -62.3 kJ/mol. Round your answer to two significant figures.
The second law states that the entropy of the universe (system and surroundings) increases in a spontaneous process : delta Ssyst + delta Ssurr is greater than or equal to 0.
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