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Assume that the molar enthalpy of vaporization of water at 365.K is37.32kJ/mol. What percentage of the energy is used to do workagainst the atmosphere?
Consider the titration of 100.0 mL of 0.100 M H2NNH2 (Kb = 3.0 10-6) by 0.200 M HNO3. Calculate the pH of the resulting solution after the following volumes of HNO3 have been added.
The pollutant gas CO is also found in the exhaust gases from petrol engines. Explain how CO and NO are removed from the exhaust gases and why the removal of each of them is desirable.
What is the absolute difference in [H+] between 2 aqueous solutions, one of pH 2.0 and one of pH 3.0? What is the [OH-] concentration of the solution of pH 2.0?
Weigh 3.503g of NaC2H3O2*3H2O and add it into a 150mL beaker. Pour in 8.8 mL of 3M acetic acid. Pour in 55.6 mL of distilled water and add it to the mixture and stir the solution.
Calculate the fraction of atoms in a sample of argon gas at 400K that have an energy of 10.0 KJ or greater.
Diphosphorus pentoxide(3.54g)has reacted with ferric oxide(5.45g). What is/are the mass/masses of the product(s) obtained per reaction assuming 100% yield
If additional ammonia is introduced into the equalibrium mixture without changing the temperature until the pressure is 700 torr, what is the partial pressure of H2S under these conditions? What is the final total pressurein the flask when the new..
The ionization constant, Ka, for benzoic acid, HC7H5O2, is 6.28 × 10-5. What is the pH of a 0.15 molar solution of this acid
What is the HCl concentration of 33.7 mL of 0.350 M NaOH is required to titrate a 30.0 mL sample of the acid?
The Haber-Bosch process is a very important industrial process. In the Haber-Bosch process, hydrogen gas reacts with nitrogen gas to produce ammonia according to the equation 3H2+N2=2NH3
Problem- Consider the electronic transition from n = 5 to n = 4 in a hydrogen atom, and select the correct statement below.
calculate the concentrations of all species in a .890 m sodium sulfite solution. the ionization constants for sulfurous acid are ka1= 1.4x10^-2 and ka2=6.3x10^-8
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