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At 1000 K the equilibrium constant for the reaction Br2 (g) === 2 Br (g) is 2.8 x 104 (pressure is in atmospheres). What does G for the reaction? Assume that the bond energy of Br2 does not change between 298 K and 1000 K and calculate S for the reaction at 1000 K.
A compound A(C6H6) undergoes catalytic hydrogenation over lindlar catalyst to give a compound B, which in turn undergoes ozonolysis followed by workup with aqueous H2O2 to yield succinic acid and two equivalents of formic acid.
An aqueous solution has a vapor pressure of 80.8mmHg at 50 degrees Celsius . The vapor pressure of pure water at this temperature is 92.6mmHg. What is the concentration of CaCl2 in mass percent
Explain how the acid hydrolysis of starch differs from the enzyme catalyzed hydfolysis. Compare products as well as conditions of time and temperature
For the complete neutralization reactions between the following pairs of acid and bases, which pair is a soluble, strong base and a weak acid that react to form an insoluble salt?
Sketch a titration curve for the titration of 100mL of 1.25x10^-2 M ascorbic acid with 1.00x10^-2 M NaOH, given that Ka= 8.0x 10^-5 and Ka2= 1.6x10^-12. How many equivalence points should the curve have and what color indicator(s) could be used?
What is also produced when aluminium-27 is bombarded with deuterium to give aluminium-28? a. neutron b. proton c. positron d. electron
Would there be any moisture diffusion in this system? In which direction? Using your sorption isotherm estimate the final moisture contents and water activities of each component?
Calculate the pH at the equivalence point for the titration of 0.130 M methylamine (CH3NH2) with 0.130 M HCl. The Kb of methylamine is 5.0× 10-4.
Calculate the percent compostion of impure benzoic acid. The orignial weight of benzoic mixture was 4.23 g
the half life for the first-order decomposition of sulfuryl chloride at 320ordmc is 8.75 h.so2cl2 g rarr so2 g cl2
How many grams of NaCl must be added to 250g water to lower the vapor pressure by 1.30 mm Hg at 40 degrees C assuming complete dissociation?
determination of the molar mass via frezzing -point depression could determine the identity. What other tests could have been performed on the unknown solute to determine identity?
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