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Arrange the subsequent substances according to their expected lattice energies, listing them from highest lattice energy to the lowest- MgS, KI, GaN LiBr
a temperature of 37 degrees Celcius were heated to a temperature of 250 degrees Celcius. If the volume does not change, what is the new pressure of the gas in atmospheres?
Electrical conductivity measurements show that 0.050 M acetic acid is 1.9% dissociated at 25* C. Calculate pKa and Ka for acetic acid.
The standard free-energy difference between the two chair conformations of isopropylcyclohexane is 9.2 kJ mol-1 (2.2 kcal mol-1). What is the ratio of concentrations of the two conformations (axial and equatorial) at 25 °C
calculate (Triangle H degree R) for the following reaction- H2S(g) + (3/2)O2(g) ---> SO2(g) + H2O(g)
At 1000 K, a sample of pure NO2 gas decomposes. 2 NO2(g) ->2 NO(g) + O2(g) The equilibrium constant KP is 158. Analysis shows that the partial pressure of O2 is 0.44 atm at equilibrium. Calculate the pressure of NO and NO2 in the mixture.
1)Determine melting point--Why would you do a mixture melting point. 2)Determine melting point-What signifies the beginning and end of the melting range. 3)Solubility -How does miscibility relate to solubility
A mixture of water and graphite is heated to 600 K. When the system comes to equilibrium it contains 0.13 mol of H2, 0.13 mol CO, 0.43 mol of H2O and some graphite.
Suggest an experimental procedure that could be used to synthesize 1,2-dimethylcyclopentene from1,2-dimethylcyclopentanol. Explain how you might exploit the differences in the boiling points of the reactant and product in designing your experiment..
Oxygen gas at 34.5ºC expands from 34.5L to 45.7L against a constant pressure of 750mmHg. What is the work done in joules by the system
Metal M crystallizes in a face-centered cubic lattice. If the edge of the unit cell is 200 pm, what is the radius of a metal M atom (in pm)
Given two liters of .407 M KCl how many milliliters of this solution you should use to prepare 250.0 ml of .175M KCl
effectively prevents hemoglobin from transporting oxygen to cells. How is the carbon monoxide acting in this process?
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