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It takes 151 kj/mol to break an iodine-iodine single bond. Calculate the maximum wavelength of light for which an iodine-iodine single bond could be broken by absorbing a single photon.
The heat of formation of KCl(s) is -436.7 kJ/mol and the heat of formation of KCl(aq, 1 m) is -419.5 kJ/mol. Determine the heat of solution of KCl.
What is the characteristic of matter that causes it to expand when the temperature increases and contract when the temperature decreases?
What is the molarity of a solution made by mixing 25 mL of 8.0 M hydrocholoric acid with 300 mL of 2.0 M hydrocholoric acid
Dibutyl ether and 1 -butene can be formed as by products in this reaction. explain how they are removed by sulfuric acid.
prove the presence of the cations listed : Sn2+ , cd2+, Cu2+, Bi3+. write four paragraphs about these cations a paragraph each?
Take the x-axis as lying perpendicular to the plane of the molecule. Does the N2px orbital participate in the hybridization for either species? Briefly explain your answer.
Calculate the amount of heat evolved in the oxidation of 32.0 g of Fe (Ar = 55.85 g/mol) at 25 oC and 1 atm pressure ( ?Hfo(Fe2O 3,s) = -824kJ/mol)
What is the mole ratio of benzene to n-octane in the vapor above a solution of 20.0% benzene and 80% n-octane by mass at 25C? The vapor pressures of n-octane and benzene at 25 c are 11 torr and 95 torr, respectively
How many grams of solid sodium phosphate, Na3PO4, are needed to prepare exactly 250ml of a 0.500M Na+ solution?
What Volume of .0200 M KMNO4 is required to titrate a solution containing
What is teh dilution of your unknown, so calculate back to final concentration. And if 1000 ppm is to be used for the serial dilutions (unknown is close to 1 ppm), what standard concentration should I use for additions
The half life of Iodine-131 is 8.0252 days. If 14.2 grams of I-131 is released in Japan and takes 31.8 days to travel across the Pacific
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