Posts by Chironjit

Total # Posts: 12

  1. Chemistry

    How much energy, in joules, must be absorbed to convert to Na+ all the atoms present in 1.00mg of gaseous Na? The first ionization energy of Na is 495.8 kJ/mol
  2. chemistry

    For the hydrogen atom where Rh=2.18*10^-18 J, the wavelength of the transition from the ground state to the n=3 state is_____?
  3. Chemistry

    What electron transition in a hydrogen atom, ending in the orbit 4, will produce light of wavelength 2170 nm ?
  4. Chemistry

    The following electron configurations correspond to the ground states of certain elements. Name each element. a) [Ar]3d^10 4s^2 4p^4 b) [Ne]3s^2 3p^3 c) [Ar]3d^2 4s^2 d) [Kr]4d^1 5s^2 e) [Xe]4f^13 6s^2
  5. Chemistry

    b)Rubidium Express your answer in condensed form, in order of increasing orbital energy. c)Tellurium Express your answer in condensed form, in order of increasing orbital energy. d)Palladium Express your answer in condensed form, in order of increasing orbital energy. e)...
  6. Chemistry

    Selenium Express your answer in condensed form, in order of increasing orbital energy. For example,[He]2s^22p^2.
  7. Chemistry

    Calculate the de Broglie wavelength, in nanometers, associated with a 145 {\rm g} baseball traveling at a speed of 162km/h
  8. Chemistry

    Use Planck's equation (E=h \nu) to determine the energy, in kilojoules per mole, of radiation of frequency 4.00×1014s^{-1} .
  9. Chemistry

    The heat of combustion of 2-propanol at 298.15 , determined in a bomb calorimeter, is -33.41. (a) For the combustion of one mole of 2-propanol, determine delta U (b) For the combustion of one mole of 2-propanol, determine delta H
  10. chem

    The heat of combustion of 2-propanol at 298.15 {\rm K}, determined in a bomb calorimeter, is -33.41{\rm{kJ/g}}. (a)For the combustion of one mole of 2-propanol, determine \Delta U. (b)For the combustion of one mole of 2-propanol, determine\Delta H.
  11. chem

    How much heat (in {kJ}) evolves when 7.0L of C2H2(d = 1.0967kg/m^3) is mixed with a stoichiometric amount of oxygen gas? The combustion reaction is C2H2+ 5/2 O2-> 2 CO2+ H2O, Delta H=-1299.5 kJ
  12. chem

    What is the final temperature (degrees celcius) of 1.36g of water with an initial temperature of 23.0degrees celcius after 6.420J of heat is added to it?