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Question- The relationship between the change in free energy and the emf of an electrochemical cell is given by:
A) G= -nF/E, B) G= -E/nF, C) G= -nF E, D) G= -nRTF, F) G= -nF/ERT
Mention all the steps and procedure to determine the correct value
Find the total number of atoms in a sample of cocaine hydrochloride, C17H22ClNO4 of mass 20.0 mg.
When 24 copper pennies are submerged in water, the pennies displace 8.26 cm3 of water. If the combined mass of the pennies is 73.86 g, what is the density of copper?
Determine the pH of a solution that is 1.07% HCl by mass (Assume a density of 1.01 g/ml for the solution.)
One of the major problems in peptide synthesis concerns racemization of the amino acids. If all the stereogenic centers at the a carbons of a polypeptide containing 10 different amino acids
chlorine was often mixed with phosgene (this mixture was known as "White Star") when used as a chemical warfare agent. This was often done to increase the diffusion rate of the phosgene. Explain on a molecular level how this works.
Why should the flask be immersed in boiling water as much aspossible? What effect will it have in determining the molecularweight? Explain.
for the following electrochemical cellzns zn21 m h?m h21 atmpta what reaction takes place at the anode? b what
The hydrocarbon benzene C_6_H_6_ boils at 80.1 C. How much energy is required to heat a 1.00 kg of this liquid from 20 C to the boiling point and then changes the liquid completely to a vapor at that temperature
at 760. torr an unknown liquid boils at 239.8 k. at 205.0 k the equilibrium vapor pressure of the unknown liquid is
Given that the pka of h2so4 is -9 and that hno3 is -1.4, explain why nitration occurs more rapidly in a mixture of concentrated nitric acid and sulfonic acids than in concentrated nitric acid alone
A certain first-order reaction (products) has a rate constant of 6.90×10-3 s^{-1} at 45 C. How many minutes does it take for the concentration of the reactant, [A], to drop to 6.25% of the original concentration?
It takes 46.8 hours for nitrogen-filled balloon to shrink to a quarter of its original volume by effusion though a very small hole. If the same balloon had been filled with helium,
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