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suppose that a liquid is 11 times denser than water if you were to sip this liquid at sea level using a straw what
how does le chatliers principle explain the effect of adding dry ice on a reaction of water and co2 with sodium
why does g always decrease as you move towards equillibrium no matter what concentrations of product and reactant you
consider the titration of 100ml of 100m h2nnh2 kb3010-6 by 200 m hno3 calculate the ph of the resulting solution after
a mixure of gases collected over water at 14 degrees celciushas a total pressure of 0981 atm and occupies 55mla how
1 a 100 l buffer solution is 0150 m in hc7h5o2 and 0250 m in lic7h5o2 calculate the ph of the solution after the
why is the e isomer of 12-dibenzoylethylene more stable than the z isomer is this why irradiation goes from e to z and
how many grams of methane must be combusted to heat 115 of water from 260 to 890 assuming as a product and 100
1 you wish to prepare an hc2h3o2 buffer with a ph of 544 if the pka of this is 474 what ratio of c2h3o2-hc2h3o2 must
why are the kr---kr and intermolecular br---br distances in the solid form of the two elements practically identical
window glass is typically made by mixing soda ash na2co3 limestone caco3 and silica sand sio2 and then heating to 1500
a 16 ounce specialty coffee drink contains 216 mg caffeine if all the caffeine is extracted and dissolved in an equal
calculate the molar mass of a a gas that has a density of 198gl at stp and b an unknown liquid for which 333 liters at
propose a mechanism for the synthesis of 3-nitrophthalhydrazide from 3-nitrophthalic acid include arrow pushing
a baso4 slurry is ingested just before the gastrointestinal tract is x-rayed because it is opaque to x-rays and defines
the solubility of co2 gas in water is 015g100ml at a co2 pressure of 760mmhgwhat is the solubility of co2 in a soft
sulfur dioxide is released in the combustion of coal scrubbers use aqueous slurries of calcium hydroxide to remove the
a 140g sample of an unknown gas occupies 108l at a temperature of 30 degrees celsius and a pressure of 750mmhgwhat is
when fully inflated a hot-air balloon has a volume of 16 x 105 at an average temperature of 397k and 0985 atmassuming
the heat of fusion of sodium metal is 630 calmol how much heat in kilocalories is required to melt 179 grams of
the heat of fusion of acetic acid the principal organic component of vinegar is 459 calghow much heat in kilocalories
the heat of vaporization of water is 972 kcalmolhow much heat in kilocalories is required to vaporize 270 mol of h2o
a compressed-air tank carried by scuba divers has a volume of 680l and a pressure of 120atm at 20 degrees celsius what
a helium balloon has a volume of 350l at 220 degrees celsius and 114atm what is its volume if the temperature is
how would you prepare a liter of carbonate buffer at a ph of 1010 you are provided with carbonic acid h2co3 sodium