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the distinctive odor of vinegar is due to acetic acidch3cooh which reacts with sodium hydroxide in the following
the jewlers mass unit for dimond is the carat by definition 1 carat equals exactly 200 mg what is the volume of a 100
experiments have shown that for 12-dichloroethane clch2ch2cl in carbon tetrachloride solution at 25 degrees 70 of the
mgo can be formed by combustion of solid mgo write a reaction scheme for the process what operational sign must entropy
the combustion of methyl alcohol in an abundant excess of oxygen follows the equation 2ch3oh3o2 2co24h2o when 765g of
the k a of hypochlorous acid hclo is 300 x10-8 what is the ph at 250 degrees c of an aqueous solution that is 00200 m
write systematic coupling patterns showing the relative chemical shifts observed for these alkyl groups explain your
in which of these molecules does spin spin coupling occur if splitting does occur give the multiplicity of each kind of
1500 ml of 8000 moll solution of diprotic acid is mixed with 3000ml of 6000 moll naoh inside a coffee cup calorimeter
a weak base b forms the salt bhcl composed of the ions bh and cl- a 049 m solution of the salt has a ph of 454 what is
when 10 mol of fe is consumed in the reaction 3fe 2o2 - fe3o4 how many mol of fe3o4 are
warren broke his thermometer after determine the freezing point of the pure solvent he used a new thermometer to find
you have 25 ml of 05 m standard naoh solution density 103 gml at 20oc and copious quantitiesof distilled water explain
a student does a mini-titration with an unknown acid by adding 13 drops of 2m naoh to 9 drops of the unknown solution
if you report two measurements of mass 742 g and 756 g are the measurements accurate are they
in a normal breath about 05 l of air at 10 atm and 293 k is inhaled about 250 of the oxygen in air is absorbed by the
compound on tlc can be roughly distinguished into their classes based on the characteristics produced after they are
peanuts and peanut oil are organic materials and burn in air howmany burning peanuts does it take to provide the energy
arginine is very soluble in water but isoleucine is much less soluble in water in two or three sentences explain this
the amino acid histidine has a side chain for which the pka is 600 calculate what fraction of the histidine side chain
a when solutions of silver nitrate and calcium chloride are mixed silver chloride precipitates out of solution
if you used naclo instead of cuso4 in reactions other than the reaction with ki and starch would you expect the results
the acid dissociation constants of sulfurous acid h2so3 are k a1 17 x10-2 and k a2 64 x10-8 at 250 degrees c calculate
what is the number of grams of water of kno3 which will disolve in 100g of h2o at 100 degrees
the new standard for arsenate in drinking water mandated by the safe drinking water act requires that by january 2006