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For a given first order reaction, the rate constant is 0.00035 s-1. How many minutes will it take for a reactant concentration to drop to 13.7 % of its initial value?
The nuclide 18f decays by both electron capture and beta plus decay. Find the difference in the energy released by these two processes. The atomic masses are 18F = 18.000950 and 18O= 17.9991598.
the temperature derivative of the entropy at constant pressure is related to what important,measurable physical quantity? Can this quantity ever be negative?And also recall how the curvature of a surface is related to the sign of a certain derivat..
The activation energy of the orginal pathway is 106 KJ/mol. What is the activation energy of the new pathway, all other factors being equal?
Aluminum metal is formed by the electrolysis of Al2O3 in molten cryolite. How many grams of Al are produced when 6.50 x 10^3 C pass through the cell
A metal, M, can readily form the M+ cation. A nonmetal, X, is a gas at room temperature and can easily form the X- anion. Is the product of the reaction of M and X a molecule or an ionic compound?
Express the following population estimates for the year 2010 in nanomoles of people. Asia, 4.15 billion people = _______ nmol The world, 6.83 billion people
the hydrated salt is overheated and the anhydrous salt thermally decomposes one product being a gas. will the reported
When the reaction is conducted in this way, however, a polymeric product is produced after step 1. What is the structure of the polymer? Why does p-acetamidobenzenesulfonyl chloride not produce a polymer
A student measures 0.2452 g of a monoprotic solid acid, and dissolves the solid in water to make 100.0 mL of solution. The entire solution is titrated to a phenolphthalein endpoint with 45.09 mL of 0.1752 M KOH.
Adipic acid can be prepared by the oxidation cleaveage of the CC double bond of cyclohexne. If you require 12.5g of adipic acid what volume of cyclohexene
Give a proposed mechanism for the base catalyzed tautomerism of the following enol to acetone.Where the equal sign is connected to slashes and the oh on top.
phenol (respectively pKa 4.75 and 9.95), What is the principle species present at pH values 3, 5, 7, and 11?
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