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Calculate the standard entropy of propane gas at 231.04K given the following data: H(fusion)=842.2 cal/mol at mp 84.45K; H(vaporization)=4487 cal/mol at bp 231.04K; S=9.95 eu for heating solid propane from 0K to 85.45K; S=21.06 eu for heating liquid propane from 85.45K to 231.04K.
The first ionization energy, E, of a lithium atom is 0.860 aJ. What is the wavelength of light, in nm, that is just sufficient to ionize a lithium atom
Write two balanced half reactions for the titration of iodine with sodium thiosulfate. Indicate what is being oxidized and what is being reduced.
Write out a step by step extraction to separate mixture of toluene, 4-methoxybenzoic acid, and benzylamine into pure compounds. All of the molecules are organic soluble in dichloromethane.
Calculate the degrees of unsaturation in a compound with the molecular formula C3H6 and draw two possible structures, including hydrogen atoms, for the formula.
Na3P + 3H2O ---> PH3 + 3NaOH. What is the theoretical yield of PH3 when 150 grams of Na3P is mixed with 250 grams of H2O? If the actual yield is 30 grams, what is the % yield?
Calculate the pH of the following solutions with the given [H+] or [OH-] and indicate whether the solution is acidic or basic
Calculate the Gibbs free energy of the separate components, the Gibbs free energy of the mixture and the Gibbs free energy of mixing
Write a balanced equation for the combination reaction described, using the smallest possible integer coefficients. When zinc oxide combines with water, zinc hydroxide is formed.
Titanium (IV) chloride, TiCl4, can be used to produce titania by the sol-gel method. What mass of ceramic can theoretically be produced from 59g of TiCl4
Briefly discuss the importance of the principles of solubility and miscibility when choosing extraction solvents
write chemical equations which show what happens when carbondioxide is absorbed by sodium hydroxide and when barium
Crystallization of sodium acetate from a supersaturated solution occurs spontaneously at constant temperature and pressure. What can you deduce about the signs of ?S and ?H for this process?
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