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methanol ch3oh is produced commercially by the catalyzed reaction of carbon monoxide and hydrogen cog 2h2 g
the elimination of carbon dioxide from pyruvate ions by a decarboxylase enzyme was monitored by measuring the partial
aqueous copper ii reacts with aqueous iodide ion to yeild solid copper i iodide and aqueous iodine write the balanced
a 04016 g sample of impure sodium carbonate soda ash is dissolved in 50 ml of distilled water phenolphthalein was added
a solution of ammonia and water contains 340times1025 water molecules and 720times1024 ammonia molecules how many total
urea ch4n2o is a common fertilizer that can be synthesized by the reaction of ammonia nh3 with carbon dioxide as
show a series of reaction by which acetylene and an alkyl halide could be converted into 3-methylhexanoic acid show all
you determine that it takes 260ml of base to neutralize a sample of your unknown acid solution the ph of the solution
would expect the percent error in the solid density to be higher or lower than the percent error in liquid density
when a 0245 sample of benzoic acid is combusted in a bomb calorimeter the temperature rises 1644 when a 0265 sample of
a student wishes to prepare 400 ml of a buffer of ph 840 using the base tris and its hydrochloric salt the molecular
a sample of the weak base hydroxylamine is titrated with 00900 m hcl 300 ml is required to reach the endpoint after the
a quantity of co gas occupies a volume of 034l at 19atm and 309k the pressure of the gas is lowered and its temperature
caculate the ph of a solution that has 4000 ml of 00900 m nh3 and 01000 m hcl is being added at a volume of 3595
calcium fluoride is a solid that only slightly soluble in water the solubility product of caf2 is 3x10-11a write the
the pressure of 70 l of an ideal gas in a flexible container is decreased to one-half of its original pressure and its
a local jeweler purchased large amounts of pure silver because he and his staff wanted to design a new line of silver
if you have the compound na2taf7 how do you determine the charge of the cation for the transition metal in this case ta
suppose that in procedure to separate benzoic acid you mistakenly added 20 ml of aqueous nahco3 at once instead of
you are given a 148 m solution of ammonia in water how many milliliters of this solution do you require to produce 75
at 25 degrees celcius only 00900 mol of generic salt ab is soluble in 100l of water what is the ksp of the salt at 25
why does one electron in a potassium atom go into the fourth energy level instead of squeezing into the third energy
when 20 grams of na2co3 are dissolved in 100 g of water the temperature of the solution increases from 250degc to
radioactive carbon-14 has a half life of 5730 years suppouse a peice of wood has a decay rate of 15 disingrations per
iron iii sulfide reacts with carbon monixide according to the following equation fe2o3 3co yields 2fe 3co2 a reaction