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There is no universal rule for the entropy of melting, in contrast to Trouton's rule. Yet a generic figure is 1kB per particle. Assuming this figure is exact, what is the molar enthalpy of melting of Argon (in kJ/mol), whose melting temperature is 83.85K?
Using the values for the resonance energies of benzene and naphthalene given above, explain why Diels-Alder reactions of anthracene take place at the center ring, not one of the end rings.
What are the molar flow rates of acetylene, carbon monoxide and hydrogen in the react or effluent? e) What is the average molecular weight of the reactor effluent?
What is the reaction mechanism (detailed with arrows) for trans-cinnamaldehyde when reacted with benzyltriphenylphosphonium chloride?
good primary standard for aqueous acid-base titrations. Calculate the mass, in grams, of KHP needed to produce 250. mL of a 1.50 M solution of KHP.
how many different alkenes will be produced when each of the following substrates is treated with a strong base? a) 1-Chloropentane
Calculate the pH of a buffer that contains 0.060M ammonium chloride
What is the hydronium ion concentration of a 0.20 M solution of an acid with a Ka
Draw the molecular-orbital-energy level diagram for the SO molecule and the NF molecule
The mass of an average blueberry is 0.78 and the mass of an automobile is 2200kg.Find the number of automobiles whose total mass is the same as 1.0 blueberries.
Compute the number of electrons in a flake of pure gold valued at $0.51. Assume that the price of gold
Using the van der Waals equation, calculate the pressure exerted by 15.0 mol of carbon dioxide confined to a 3.00-L vessel at 56.0 oC. Note: Values for a and b in the van der Waals equation: a = 3.59 L2.atm/mol2, and b = 0.0427 L/mol.
The acid-dissociation constant for hypochlorous acid (HClO) is 3.0x10^-8 A)Calculate the concentration of H30+at equilibrium if the initial concentration of HClO is 9.0×10-3
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