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Question- Ultraviolet radiation of wavelength 121 nm is used to irradiate a sample of potassium metal. The work function of potassium is 2.25 eV. Calculate the speed of the electrons emitted through the photoelectric effect (x10^6 m s-1).
I am in need of complete solution for the above problem please help- me out to get right solution
1. Find the pH of a solution that has a concentration of hydrochloric acid equal to 0.001 M. 2. Find the normal pH of rainfall (not acid rain). Would a rain sample with a pH of 5.0 be considered "acid rain"
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An equilibrium mixture at 300K contains N2O4 as well as NO2 at 0.28 and 1.1atm pressure respectively. If the volume of the container is doubled. Compute the new equilibrium pressure of two gases
what is the best method to use to determine if moleculesare polar or nonpolar? also with regards tointermolecular
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