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Problem- Briefly explain the Born-Oppenheimer approximation. Which terms of the Hamiltonian for a hydrogen molecule are affected by this approximation? Why is this approximation simplifying the quantum mechanical description of the hydrogen atom?
Any expert will able to provide correct answer for the above question.
You have a 22 g sample of ethanol with a density of 0.7893 g/mL. What volume of ethanol do you have. What mass of lead (density 11.4 g/cm3) would have an identical volume to 14.1 g of mercury (density 13.6 g/cm3).
Determine the rate law and the numerical value for K based on the following data :
Explain in gory detail the relationship between temperature and vapor pressure. Lots of pictures might be helpful. Why does water expand when it freezes?
When 56.0 g calcium and 34.7 g nitrogen gas undergo a reaction that has a 88.0% yield, what mass of calcium nitride forms?
Calculate the freezing point of 0.15 m calcium chloride aqueous solution. Assume that the molal freezing point depression constant of water is 1.86°C•kg/mol and that the freezing point of water is 0.00°C.
Explain a solution containing 543 g of Mg(NO3)2 per liter of solution has a density of 1.114 g/mL. Explain what is the morality of the solution
when heated to a high temperature cyclobutane c4h8 decomposes to ethylene.c4h8g 2 c2h4gthe activation energy ea for
what is the percent by mass of nahco3 in a solution containing 30 g of nahco3 dissolved in 500 ml of
Problem- Write a balanced chemical equation for the reaction of solid potassium with liquid water. (Use the lowest possible coefficients. Include states-of-matter under SATP conditions in your answer
Write a balanced equation for the diazonium salt 1-naphthol and aminobenzenesulfonic acid (para structure). Draw a possible structure
A solution is prepared by mixing 10g of water with 10g of ethanol. What is the mole fraction of water in the vapor phase at 30 degree C. The vapor pressure of water at 30 degree C is 32 torr and ethanol is 78 torr. The molar mass of water is 18.02..
given that the molar enthalpy of vaporization delta h for H2O(l) is 44kj at 298k, what is the standerd enthalpy change for the reaction 2H20(G)+ O2(g)---->2H2O(G)?
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