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at constant volume the heat of combustion of a particular compound is -36430 kjmol when 1231 g of this compound molar
an 800-gram sample of a gas was heated from 25 degc to 225 degc during this process 346 j of work was done by the
if you have 4300 ml of water at 2500 degc and add 1200 ml of water at 9500 degc what is the final temperature of the
if the heat of combustion for a specific compound is -12100 kjmol and its molar mass is 4697 gmol how many grams of
a researcher studying the nutritional value of a new candy places a 490-gram sample of the candy inside a bomb
a 2543 g sample of a substance is initially at 259 degc after absorbing 1137 j of heat the temperature of the substance
automobile airbags contain solid sodium azide nan3 that reacts to produce nitrogen gas when heated thus inflating the
the dissociation constant kd of a 11 ligand l protein p complex is 20x10-6 calculate the fractional concentration y at
in the sn1 reaction of 2-methyl-2-butanol with hcl to prepare 2-chloro-2-methlybutane t-amyl chloride what are the side
baking powder is made up of sodium hydrogen carbonate and calcium hydrogen phosphate when baking powder is wet these
use the equation ph pka log conjugate baseacid to derive an expression showing the fraction of acid f in terms of its
assume you have a material in which an equal number of electrons and holes are available to transport charge if the
the gasoline tank of an automobile contains 83 kg of gasoline the gasoline combines with 3320 kg of oxygen what is the
when heated a 83 g sample of ammonium perchlorate nh4clo4 ignites and burns in the absence of any other material to
279 g of n2o reacts completely with an equimolar amount of no2 to form elemental nitrogen and oxygen how much n2 is
elemental analysis of a 451 mg sample of unknown hydrocarbon shows that it contains 3942721 mg of carbon if the
acid rain is caused in part by burning coal that contains sulfur impurities the sulfur is converted first to so2 which
sucrose c12h22o11 can be mixed with potassium nitrate to form an amateur rocket propellant called rocket candy which
a strong acid is generally used to catalyze the fisher esterification of carboxylic acids what two steps in the
titanium has a work function of 694x10-19 j and silicon has a work function of 724x10-19 j the surfaces are irradiated
suppose some of the solid calcium hydroxide is advertently transferred along with the supernatant liquid for analysisa
what is the wavelengthin nm of radiation that has an energy content of 213x103 kjmol in which region of the
in the determination of the specific heat of a metal why is it desirable to use the minimum volume of water that will
a 1186 ml sample of 0110 m methylamine ch3nh2 kb 37 10-4 is titrated with 0250 m hno3 calculate the ph after the
sodium cyanide reacts with 2-bromobutane in dimethylsulfoxide to form a substitution product identify the configuration