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state a complete mechanism for the formation of 1-methylcyclohexeneby the acid-catalyzed dehydration of
given the ksp values for pbcl2 of1610-5 at 25oc and 3310-3 at80oc if 100ml of saturated pbcl2aq at80oc is cooled to
which of the subsequent molecules would be expected to form hydrogen bonds in the liquid or solid state- ethylene
a sample of iron ore weighing 02370g was dissolved in an excess of a dilute acid solution all the iron was first
2no2g--gto2g2nogspecified that the half-life of this reverse reaction is 52sec when the initial concentration of no2 is
all living things contain carbon most of this carbon is stable carbon-12 nevertheless a small percentage will be
a 200ml sample of 020 m sodium acetate is titrated with 011 mhcl aq explain what is the ph after the addition of 500 ml
in the halo form reaction once the first alpha-hydrogen atom is replaced by a halogen atom all successive hydrogen is
the maximum allowable concentration of pb2 ions in drinking water is 005ppm that is 005 g of pb2 in 1million g of water
the solubility product of mg oh2 is 12x10-11 explain what minimum oh- concentration must be attained for example by
a 20l kettle contains 116g of calcium carbonate as boiler scale explain how many times would the kettle have to be
oxidizing ethanol and methanol in an experiment and it is not a safe process explain how to know which to add first-
compute the theoretical quantities of thionyl chloride and sodium borohydride needed to convert benzoin to
how could you bring about the subsequent conversions you must give the needed reagents and conditions and write and
explain how many calories are required to heat 256g of water from 20c -99c explain how many calories are required to
a 04430 grams sample of impure sodium nitrate was heated converting all the sodium nitrate into 02864 grams of sodium
the mixture of tetra phosphorous trisulfide as well as powdered glass is in the tip of strike anywhere matches and this
a 200ml sample of 020 m sodium acetate is titrated with 011 m hclaq explain what is the ph after the addition of 500ml
explain which one of the subsequent conditions is always met at the equivalence point of the titration of amonoprotic
explain what mass of solid kf molar mass 581 gmol should be added to20 l of 025 m hf to make a buffer with a ph of 314
work for the odors-r-us company and have merely been informed that blight has wiped out your pineapple crop needed to
an insect infestation has merely decimated your suppliers banana crop and you are now also needed to synthesize the
suggest a mechanism for the base-catalyzed condensation of one molecule of acetone with two molecules of benzaldehyde
a student mixes 500 ml of 100 m baoh2 with 864 mlof 0494 m h2so4 compute the mass of baso4 formed and the ph of the
from the solubility data given compute the solubility products for the following compounds a srf2 73 x10-2 gl and b