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Use the standard enthaplies of formation to calculate the standard change in enthaply for the melting of ice. (-291.8 kj/mol for H20 (s). Use this value to calculate the mass of ice required to cool 355 mL of a beverage from the room temperature (25 degree celsius) to 0 degree celsius. Assume that the specfic heat capacity and the density of the beverage are the same as those of water.
what is the vapor pressure of ethanol at 290 K when heat of vaporization is equal to 38.56 kJ/mol and the normal boiling point is 351.4?
The plot of In P vs. 1/T for a liquid produces a curve with slope -860k. what is the enthalpy of vaporization for the liquid
calculate the mole fraction of ethanol ch3ch2oh molar mass 46.0 gmol in a solution that contains 46 g of ethanol and
determine the pH at the equivalence point in the titration of 28.5 mL of 0.694 M pyridine, C6H5N, by 0.770 M HNO3.
What is the mole fraction of acetone, C3H6O, in the vapor phase from a solution consisting of a mixture of acetone and ethyl acetate, CH3COOCH2CH3, at 30.00 °C, if the total pressure above the solution is 184.6 torr?
Write a thermochemical equation for the reaction that shows the formation of one mole of nitric acid.
Mehtanol-water solutions behave as essentially ideal solutions (the activity coefficients which measure deviation from ideality are equal to or close to one).
The activation energy of a reaction is 57.9 kJ/mol and the frequency factor is {1.5\; \times \;10^{11} }/{{\rm{s}}}. Calculate the rate constant of the reaction at 26^\circ C.
zinc reacts with 100. ml of 6.00 m cold aqueous sulferic acid through single replacement. how many grams of zinc
Gold has a face-centered cubic structure and has a density of 19.3 g/cm3. What is its atomic radius?
describe in detail reagent solvent you can employ to prepare OTTO DIELS and KURT ALDER reaction. Note that this reaction involves the 1-4- addition of a conjugated diene in S-cis, S-trans conformation to an alkene in which two new sigma bond are f..
Choose the amino acid in the following pairs that would be more likely to appear on the solvent-eexposed surface of a protein.
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