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based on your intuitive knowledge of chemistry and physics suggest why rubber is an elastomer room temperature but
191 g h2 is allowed to react with 102 g n2 producing 117 g nh3a what is the theoretical yield for this reaction under
a 620 g sample of phosphorus was reacted with oxygen to form an oxide with a mass of 1420 g calculate the percent
calculate the density of hydrogen sulfide gas h2s at 58degc and 896 mm hg obtain the density in grams per
2-butene-1-thiols is one component of skunk spray how whould you synthesize this substance from methyl 2-buenoate from
write balanced half-cell reactions for ch2o oxidation and so4 reduction to hs and then add them together to get the
calculate the concentrations of c2h2o4 c2ho4 c2o42- and h ions in a 019 m oxalic acid solutionc2h2o4c2ho4 hc2o42-
the volumes450145054507 and 4533ml were used to titrate a 50ml aliquot of a sample would you reject any values at a 90
determine the osmotic pressure of a solution that is 0200 m in glucose and 0100 m in sodium chloride at 370 degrees
a scientist wants to make a solution of tribasic sodium phosphate na3po4 for a laboratory experiment how many grams of
it was determined from six replicates measurements that a candlewick contained 121 ppm lead and the standard deviation
so supposedly in a knoevenagel condensation if the catalyst is a primary or secondary base an iminium salt is supposed
which value is closest to the poh of a 030m solution of the weak base methylamine ch3nh2 the ka for the acid form of
determine the molecular formula for an 8-carbon hydrocarbon with 3 pi bonds and one
draw an oxygen consumption cruve for a suspension of isolated mitochondria when the following compounds are added in
consider the titration of 300 ml of 0035 m nh3 with 0025 m hcl calculate the ph after the following volumes of titrant
a 1000 g sample of a compound containing the elements carbon hydrogen oxygen and nitrogen was burned in excess oxygen
using and citing appropriate sources determine the energy output for e-85 ethanol and gasoline octane ona a per mole
if two different substances have the same or nearly the same rf values it is difficult to separate these materials in a
what is the magnitude of the angular momentum of a ch4 molecule when it is rotating with its minimum
the pressure of 90 l of an ideal gas in a flexible container is decreased to one-sixth of its original pressure and its
draw the lewis structure of the molecule assuming that the cl atoms bond to a single c atom and that there is a c-c
the number of moles of c8h4o4-2 at the equalalence point and the total volume at that point to calculate the ph for
draw the structure of two geometric isomers with the empirical formula c5h8o that gives a positive iodoform
you have isolated compound x from panda pancreas you started a whole pancreas and finished up with 2 ml of a pure