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which one of the following electron configuration would corresponds to ground states and which to excited states a1s2
a large scale polycondensation reaction of a diol and a diacid is performed at 200 c at various intervals small samples
a natural gas consisting of pure methane enters a furnace along with a 50 excess air at 25 degrees c assuming an
when 3-methyl-2-pentene is treated with mercuric acetate hgo2cch302 in a thf-ethanol mixture and the resulting product
a chemistry student prepares leadii iodide from 135 g of lead ii nitrate and excess aqueous potassium iodide if the
for the reaction 2kclo3s --gt 2kcls 3o2g delta h -910 kj a what is delta h for the
a gaseous fuel mixture stored at 743mmhg and 298 k contains only methane and propane when 118 l of this fuel mixture is
calculate the molarity of each of the following solutions part a - 014mol of lino3 in 60l of solution express your
consider the titration of a 250 ml sample of 0100 m hc2h3o using 0100 m naoh as the titrant ka18 x 10 -5 calculate the
which of the following pure liquids is the best solvent for carbon disulfide hbrl ch3ohl c6h6l h2ol
calculate the concentration of each of the following solutions in mass percent part a - 915g c2h6o in 711g h2o part b -
for the reaction cog2h2g--gtch3ohg gdeg700k -13455 kj what is kp for this reaction at 700 k any help would be greatly
how many kilojoules of thermal energy are released by the reaction of 341 g al with excess oxygen 2als 32o2g --gt
for the reaction 2ch3ch2ch2ch3g 13o2 --gt 9co2g 10h2og delta h -52850 kj a how many kilojoules are released when 2786
the heat of solution of libr is -488kjmol if 482 g of libr is dissolved in 1000 g of water in a calorimeeter at 198 c
consider the titration of a 250 ml sample of 0100 m acetic acid using 0100 m naoh as the titrant the value of the
if you drop 250 g of warm iron nails initial temp 654c into a beaker that contains 1000 g water at 200 c what will the
consider the general chemical equation 9 a 2 b ---gt 8 c 4 d a how many moles of c are produced from 9 moles of a b
if 412 g of water at 187c are mixed with 276 g of water at 384 c what will be the temperature of the mixture assume
calculate the molarity of a sodium chloride brine solution that exhibits a density of 113 gml and a mass percent of 177
how many kilojoules a are required to raise the temperature of 334 g ch3ch2ohl from 196 to 498 c b must be removed from
the titration of a weak base with a strong acid will have an end point a with a ph greater than 7 bwith a ph less than
an fm radio station broadcasts electromagnetic radiation at a frequency of 957106 hz calculate the wavelength of this
calculate the heat in joules when 8919 g of ice at 1000 k is turned into liquid water at 100 degrees celsius ive tried
the titration of a 250ml sample of 0100 m acetic acid using 0100 m naoh as the titrant the value of the equilibrium