Saturday
December 20, 2014

Posts by Chironjit


Total # Posts: 12

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
December 9, 2012

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_____?
December 4, 2012

Chemistry
What electron transition in a hydrogen atom, ending in the orbit 4, will produce light of wavelength 2170 nm ?
November 26, 2012

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
November 26, 2012

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)...
November 26, 2012

Chemistry
Selenium Express your answer in condensed form, in order of increasing orbital energy. For example,[He]2s^22p^2.
November 26, 2012

Chemistry
Calculate the de Broglie wavelength, in nanometers, associated with a 145 {\rm g} baseball traveling at a speed of 162km/h
November 26, 2012

Chemistry
Use Planck's equation (E=h \nu) to determine the energy, in kilojoules per mole, of radiation of frequency 4.00×1014s^{-1} .
November 26, 2012

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
November 19, 2012

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.
November 19, 2012

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
November 19, 2012

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?
November 19, 2012

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