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when 342 ml of a 102 m naoh solution is added from a burette to 2500 ml of a phosphoric acid solution that contains
a beaker with 100 ml of an acetic acid buffer with a ph of 500 is sitting on a benchtop the total molarity of acid and
what can make the titrated solution at the equivalence point in an acid-base titration have a ph not equal to
sometimes the structure of phosphoric acid is written with single bonds to both the oh groups and to the oxygen atom
what is the volume of the solution that would result by diluting 7000 ml of 919times10-2 m rm naoh to a concentration
a reaction rate increases by a factor of 1000 in the presence of a catalyst at 25 c the activation energy of the
sulfuryl chloride so2cl2 decomposes by first-order kinetics and k 281 x 10-3 min-1 at a certain temperaturea determine
an electron makes a transition from n 8 to n 3 what is the energy associated with this
1 what are the electron configurations of the following metal ions fe3 zr4 and co32 draw a the high-spin electron
the ability to sense odor is not the only chemoreceptor response in the human bodyresearch and describe two other
research information about the human olfactory system and olfactory receptors explain how humans sense odor and clearly
a copper ii sulfate dissolveds in water to form a blue solution what species are present in solution ie what is
calculation of stoichiometric points of inflection on a titration curve is very useful in choosing indicators that will
the point in the titration when buffering is least efficient occurs at the stoichiometric point or equivalence point in
the maximum buffer point occurs when the ph equals the pk explain based on the henderson-hasselbach
in the structure of phosphoric acid why is it relatively easy to remove the first proton considerably harder to remove
a container with 1 mole of gas is expanded from 5 litres to 10 litres by adding more gas the temperature and pressure
1a for the reaction i2g br2glt---gt2ibrg kc87e2 at 150 degrees celsius suppose that 504 moles of each substance is
a liquid in a sealed container with a moveable piston lid is vaporised at its boiling point predict the signs of w q h
a write balanced equations for the combustion of methane ch4g and octane c8h18 in air the products are carbon dioxide
what is the wavelength in nanometers associated with a photon which has an energy content of 534 x 10-22
draw the newman projections for all the staggered and eclipsed rotamers for 2-chloro-3-methylbutane down the c2-c3 bond
which of the following would produce the greatest increase in the volume of a gas sample a doubling the amount of gas
the pressure on a sample of an ideal gas is increased from 715 mmhg to 355 atm at constant temperature if the initial
if the volume of gasoline vapor and air at 100 atm of pressure is gradually decreased from 780 ml to 390 ml what is the