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What would happen to the % Transmittance value if the wavelegth is changed from 447nm to 520 nm?
Use Le Chatelier's principle to explain the different colors found in the equilibra in Methyl orange
The initial temperature of the calorimeter is 23.0C. If 10.0 g of CaCl2 is added to the calorimeter, what will be the final temperature of the solution in the calorimeter. The heat of solution, Delta Hsol, of CaCl2 is -82.8~kJ/mol.
Treatment of this disaccharide with alpha mannosidase yields D-mannose and D-glucose. Draw the structure of the trisaccharide and state its systematic name.
A rigid container of O2 has a pressure of 388kPa at a temperature of 713K. What is the pressure at 273K.
When the reaction that occurs finally ceases, what will be the mass of unreacted copper in the bar? What will be the mass of silver metal that "plates out" of solution (that is, what mass of silver metal is produced by the reaction)
The vapor pressure of methanol at 30. oC is 158 torr. What mass (in grams) of methanol actually evaporates?
An alkyne of six carbon atoms gives the same single product in its reaction either with BH3 in THF followed by H2O2 /OH-, or with H2O/Hg2 /H3O . Draw the structure of the alkyne (containing only carbon and hydrogen atoms).
show that cos(ix)= e^-x+e^x/2 and isin(ix)= e^-x-e^x/2 this is expressions are called the hyperbolic cosine and hyperbolic sine, respectively, hint start with e^-x=e^i(ix) and e^x=e^i(-ix) and apply euler's formula
The crystal field splitting energy for a complex is 160 kJ/mol. What wavelength of light is absorbed by this complex? A) 750 nm (red light)
what the oxidation state P in PO4^-2? what the oxidation state O in PO4^-2?
An ice cube at 0 degrees C with a mass of 115 g is added to H2O in a beaker that has a temperature of 64.0 degrees C. if the final temperature of the mixture is 24.0 degrees C, what was the initial mass of the warm water
calculate the entropy change when argon at 25 degc and 1.00 bar in a container of volume 0.500 dm3 is allowed to expand
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