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A total of 2.00 molof a compound is allowed to react with water in a foam coffee cup and the reaction produces 106g of solution. The reaction caused the temperature of the solution to rise from 21.0c to 24.7c . What is the enthalpy of this reaction? Assume that no heat is lost to the surroundings or to the coffee cup itself and that the specific heat of the solution is the same as that of pure water. Enter your answer in kilojoules per mole of compound to three significant figures.
0.000333 g fluorescein (332.32 g/mol) is dissolved in 225 mL solution of ethanol. The density of ethanol is 0.785 g/mL. What is the concentration of the solution in molarity (M)
According to the delocalized molecular-orbital theory of metals, in what sense do we say that the entire piece of metal
A mixture of CO(g) and O2 (g) in a 1 L container at 1000 K has a total pressure of 2.2 atm. After some time the total pressure falls to 1.9 atm as the result of the formation of the CO2(g). Find the mass in grams of the CO2 gas.
If antique brass is 30.0% zinc and 70.0% copper, how many grams of antique brass can be made from 18.0 grams of zinc and 35.1 grams of copper
Calculate the expectation value for the kinetic energy of the H atom with the electron in 2s orbital. Compare your result with total energy
What is the balanced chemical equation for the rearrangement of benzopinacol to benzopinacolone using iodine and acetic acid?
A situation with an industrial input of arsenic directly into the lake at 10kg/Day. The lake volume is 1.2 x 10^8 m^3, and the average depth is 10m.
lf the catalyzed decomposition of NrO occurs first at a Tr:341 K and then atTr = 229 K, with a k/k, ratio of 0.500, what is the activation energy
Write a reaction mechanism for the reaction between 2,3-dimethyl-3-hexanol with hydrochloric acid. (B) What is the reaction mechanism type for this reaction
In the citric acid cycle, how many net atp are generated between alpha-ketogluturate and malate
The pH of a sample of rain is found to be 3.2. Calculate the percentage of HSO4- that is ionized in this sample, given that the acid dissociation constant for the second stage of ionization of H2SO4 is 1.2E-2.
The molar enthalpy of fusion of ice at 0 0C is 6.02 kJ/mol; the molar heat capacity of supercooled water is 75.3 J/molK. (a) One mole of supercooled water at -10 0C is induced to crystallize in a heat-insulated vessel.
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