How many grams of dry nh4cl need to be added to 150 l of a
How many grams of dry NH4Cl need to be added to 1.50 L of a 0.500 M solution of ammonia, NH3,to prepare a buffer solution that has a pH of 8.79? Kb for ammonia is 1.8*10^-5.
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an incident beam of photons is scattered through 1670deg the wavelength of the scattered photons is 12529 pm what is
write balanced net ionic equations when the following compounds are mixed indicated mixtures where no reaction is
assuming that the formal charge on the central atom cant be larger than - 1 what is the number of important resonance
an electron is confined in a one-dimensional box an infinite well two adjacent allowed energies of the electron are
how many grams of dry nh4cl need to be added to 150 l of a 0500 m solution of ammonia nh3to prepare a buffer solution
a 520 ml volume of 035 m ch3cooh ka 1810-5 is titrated with 040 m naoh calculate the ph after the addition of 230 ml
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a 750 ml volume of 0200 m nh3 kb1810-5 is titrated with 0500 m calculate the ph after the addition of 250 ml of
a converging lens has a focal length of 800 cma what is the image distance for an object placed 140 cm from the thin
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