Stripping nicotine from kerosene. a kerosene flow of 100 kg/h contains 1.4 wt % nicotine and is to be stripped with pure water in a countercurrent multistage tower. it is desired to remove 90% of the nicotine. using a water rate of 1.50 times the minimum, determine the number of theoretical stages required. (use the equilibrium data from example 27.4-3.)

What is the fate of the electrons that interact with a specimen in an electron microscope?

Calculate the ratio of h+ ions to oh– ions at a ph = 6. find the concentration of h+ ions to oh– ions listed in table b of your student guide. then divide the h+ concentration by the oh– concentration. record this calculated ratio in table a of your student guide. compare your approximated and calculated ratios of h+ ions to oh– ions at a ph = 6. are they the same? why or why not? record your explanation in table a. what is the concentration of h+ ions at a ph = 6? mol/l what is the concentration of oh– ions at a ph = 6? mol/l what is the ratio of h+ ions to oh– ions at a ph = 6? : 1

Acertain radio station broadcasts radio waves that have a wavelength of 298cm what is its broadcast frequency?