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Calculate the wavelength of a particle with masses 9.11x10-31Kg travelling at speed 1.0x107 m/s and that of a ball of mass 0.1Kg travelling at 35 m/s. Comment on the significance of the wavelengths calculated.
A new element has been discovered and all you know is that it is a noble gas Predict the number of electrons in its outer orbit and possible atomic number(s)
A new element has been discovered and all you know is that it is a halogen Predict the number of electrons in its outer orbit and possible atomic number(s)
how many moles of sodium are needed to react with sulfic acid to produce 3.75 moles of sodium according to the following unbalanced reaction
Na+ H2(SO4)> Na2 (SO4)+H2
How to find wavelength with Mass given
Arrange the following species in order of (a) increasing ionic radius, and (b) increasing ionization energy: O2-, F-, Na+, Mg2+. Explain your answer in terms of nuclear charge and charge of ions.
Elements with very large ionization energies also tend to have highly exothermic electron affinities. Explain. Which group of elements would you expect to be an exception to this statement?
Elements with very large ionization energies also tend to have highly exothermic electron affinities. Explain. Which group of elements would you expect to be an exception to this statement?
When 8.00 grams of methane reacts it produces 2.4 L of hydrogen gas at 300 K. What is the pressure of the
hydrogen gas?
Determine the [H+] , [OH−] , and pH of a solution with a pOH of 2.81 at 25 °C.
[H+]=
[OH−]=
pH=
