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a 140g sample of an unknown gas occupies 108l at a temperature of 30 degrees celsius and a pressure of 750mmhg what 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 celsiuswhat
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
the melting point range is measure for two materials a and b for material a the melting point range is from 585 c to
1 what would be a good primary standard for direct standardization of an hcl titrant2 what is the difference in the
what wold you prodict for the relative reactivity of 4-trifluoromehylbenzaldehyde in this aldol condensation reaction
what is the balanced net ionic equation for precipitation of caco3 when aqueous solutions of na2co3 and cacl2 are
1 during an experiment a student mixed 145ml of a 0500m sodium fluoride solution with 156ml of a 0750m hydrofluoric
in solid nickel the atoms are so tightly packed they touch each other using geometry and the equation 4r a212 and a
draw all of the resonance forms of 4-methoxybenzaldehyde which contribute to the reducwd electrophilicity of the
a solution is made by combining 150 ml of 180 m acetic acid with 550 g of sodium acetate and diluting to a total volume
does your spectrum allow you to confirm that the structure of the product is a combination of the two reactants briefly
a solution was prepared by dissolving 0450 g mgso4 fw120363gmol in 0500l of water a 500 ml aliquot of this solution
a 2500 ml of a sample containing both fe3 and cu2 required 1606 ml of 005083m edta to completely titrate both cations a
a 2500 ml sample containing fe3 was treated with 1000 ml of 00367m edta to complex all of the fe3 and leave excess edta
the calcium in a 150 ml sample of water from the ogeechee river at a location near savannah was determined by
a 5000-ml solution containing nabr fw102894gmol was treated with excess agno3 to precipitate 02146 g of agbr fw
we are enabling trans to cis isomerizaton of e-12-dibenzoylethylene by irradiating the alkene with light which alkene
we are enabling the trans to cis isomerization of e-12-bidenzoylethylene by irradiating the alkene with light why does
how much energy is required to vaporize 158g of butane c4h10 at its boiling point if it has hvap is