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acetylsalicylic acid aspirin hc9h7o4 is the most widely used pain reliever and fever reducer in the world find the ph
when solid ammonium chloride nh4cl is added to excess water a solution forms and the temperature of the system
a sample of 050 g of anhydrous cocl2subscript is dissolved in 250 ml of water predict the absorbance at 510 nm for this
suppose you were to prepare a buffer solution using ammonia and ammonium chloride what would be the molar ratio of acid
1 an aqueous solution of weak base b of unknown concentration is tritrated with a known concentration of strong acid
stepwise mehcanism for the reaction of 3-methyl-3-hexanol with hcl to form
how many grams of nickel would be electroplated by passing a constant current of 72 a through a solution of niso4 for
calculate the amount of sulfer dioxide produced annually by a power plant that burns 75 million metric tons t of coal
a mixture contains h2 at 325 torr pressure n2 at 475 torr pressure and o2 at 650 torr pressure what is the total
an alkaline earth metal m combines with a halide x will the resulting compound be ionic or covanlent why what is the
three particles have the same electon configuration one is a cation of an alkali metal one is an anion of the halide in
a dry cleaning fluid composed of carbon and chlorine was found to have the composition 145 carbon and 855 chlorine its
a typical hot pack is designed to reach a temperature of approximately 50 degrees celsius starting from room
if the antacid for analysis is known to be phillips milk of magnesia the solution does not need to be heated but if the
show the long hand and short hand electron configuration and orbital diagram for elements with these atomic numbersa
what is the molar solubility of silver chromate in a solution of 020 m silver nitrate ksp for silver chromate is 11 x
a determine the ph at the equivalence point in the titration of 250 ml of 0100 m naoh with 100 m hno3 b what is the ph
poiseuilles law as stated here gives the volue time rate of lamnar flow of an incompressible fluid through a pipe r is
a 300ml water sample has an initial ph of 10 40ml of 002 nh2so4 were required to titrate the water sample to ph 45a
in a hot flame the emission intensities of the sodium lines at 589 and 5896nm are greater in a sample solution that
applications of aqueous equilibria a 250 ml sample of 0100 m lactic acid hc3h5o3 ka 138 x 10-4 is titrated with a 0100
erythrocytes phosphorylate glucose to glucose 6-phosphate with the help of the enzyme hexokinase instead of glucokinase
calculate the ki for a competitive inhibitor whose concentration is 45 x10-4 m that increases the km of the substrate
1 whats the mass of sodium oxide produced if 15 g of sodium reacts with excess gaseous oxygen write the balanced
an enzyme mw 20250 catalyzes the hydrolysis of a newly discovered substrate the kcat was found to be 2000 sec-1 and km