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in the first 100 seconds of the reaction the concentration of i-dropped from 1000m to 0868m - compute the average rate
a depict skeletal structure of major organic product produced when benzoyl chloride reacts with 2-methylpropanoic acid
explain what is the ph of a buffer solution that is 034 m in na2hpo4 and 046 m in kh2po4 ka1 71e-3 ka2 63e-8 and ka3
there are two bulbs connected in system by valves one bulb is 100l with a gas pressure of 645 mm hg and the other is
a traditional method of providing temporary immunity for a person who is suspected of being infected usually be an
a sample of an unknown gas with a mass of 985g has a volume of 54523 l when the temperature is 1587oc and the pressure
each body function on the left is correctly matched with the corresponding function of the blood on the right except-a
presume a student used 10ml of 2-methylcyclohexanol and 2ml of phosphoric acid in a dehydration reaction after
explain what volume of nitrogen gas is needed to react entirely with 1500 l of hydrogen in the production of
a strip of tinsn is placed in an agno3 solution forecast whether or not a spontaneous oxidation-reduction reaction
a particular voltaic cell operates on the reaction below giving an emf of 0865 v compute the maximum electrical work
for a certain gas that contains merely carbon and hydrogen the mass percentage of hydrogen is known to be 1437 it is
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