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many pharmeceuticals are derived from piperazine solutions of piperazine are basic kb1538x10-6 kb2215x10-9 what is the
an enzyme has a km of 8 microm in the absence of a competitive inhibitor and a kmapp of 12 microm in the presence of 3
carbonic anhydrase molar mass 30000 gmol of red blood cells has one of the highest turnover numbers it catalyzes the
ethylene glycol hoch2ch2oh is used as antifreeze it is produced from ethylene oxide c2h4o by the following
liver alcohol dehydrogenase adh is relatively nonspecific and will oxidize ethanol or other alcohols including methanol
the base-dissociation constant of ethylamine c2h5nh2 is 64 times 10-4 at 250 degc the of h in a 16 times 10-2 m
an unknown solution of ethanol was titrated with 250ml of 02m solution of potassium dichromate in sulfuric acid in
calculate the reversible work required to transport 1mol of k from a region where ck525 mm to a region where ck355 mm
suppose the concentration of protons inside a cell membrane is cin and similarly the concentration outside is cout
a solution contains 025 m nino3 and 025 m cuno32 can metal ions be separated by slowly adding na2co3 assume that for
why does the addition of the no2 to the acidic solution of acetanilide need to be performed at a cold temperature what
1 give an example of thermodynamically stable system and a kinetically stableone whats the differencethe following
calculate the standard cell potential and the equilibrium constant for the oxidation of ethanol to acetaldehyde
calculate the maximum concentration in m of silver ions in a solution that contains 0025 m co32- the ksp of ag2co3 is
a thermally powered refrigerator receives heat from a flame at 400 c and withraws heat from a cold box at -40 c if the
both e- and z- 2-cholorobutenedioic acids dehydrochlorinate to give acetylene dicarboxylic acid the z acid reacts about
consider a solution formed by mixing 300 ml of 0100 m h2so4 245 ml of 0100 m hocl 250 ml of 0200 m naoh 250 ml of 0100
a solution contains 0021 m cl and 0017 m i a solution containing copper i ions is added to selectively precipitate one
calculate the ph of a solution formed by mixing 1000 ml of 020 m hclo with 2000 ml of 030 m kclo the ka for hclo is 29
how would the absorbance of a nascn have been affected if 30 m feno33 had been used in place of 20 m in the case that
if you have a 750 ml flask that contains 1235g of c5 h11 no3 that is heated to 1185 degrees c what is the pressure
nitric acid can be synthesized by the high temperature reaction of oxygen and ammonia forming nitric acid and water
a mercury barometer reads 7435 mmhg if the density of mercury is 13523 gcm3 at 800 degrees c what would be the height
the physician has ordered 100 g of tetracycline to be given every 6 hours to a patient if your stock on hand is 500 mg
a text 836assume sucrose and water form an ideal solution what is the equilibrium vapor pressure of a solution of 20