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using a compound contains 3006 percent oxygen and 6994 percent iron determine its molecular formula if the molar mass of the compound 19955 grams
a female needs to take ibuprofen of 375mg twice daily the pills in the bottle are each 250 mg determine how many pills does the female require to
for the reaction given as nog o3g --gtno2g o2g the frequency factor a 87 x 1012 s-1 activation energy 63 kjmol determine the rate constant for
what is the temperature change if 84 joules of heat are added to a pure gold coin with a mass of fifteen grams it is given that the specific heat
determine the mass of the lead in grams if the water level in a graduated cylinder initially at 224 ml rises to 274 ml after a piece of pb is
considering the given reaction csco2g-gt2cogreversible heterogeneous reactionnbspthe total pressure of the system is found to be 4 atm when
if h2 of 500 ml and c2h4 of 500 ml are permitted to react at the pressure of 15 atm produce c2h6 that has a volume of 500 mille litres compute the
considering the given equations 3cuso4 2fe --gt 3 cu fe2so43 determine the limiting reactant and the numbers of moles of cu will be formed if you
the specific heat of aluminum 022 calg degrees c determine what would be the final temperature if thirty grams of al at 95 degrees celsius are added
determine how many kgs of ca are there in a 205-pound man if 14 percent of the mass of a human body is calciumcaan antacid tablet dissolves in h2o
a sample of 360 mg of an organic compound that has molar mass 840 gmol is dissolved in 100 ml of h2o solution is extracted with five mili litres of
you measure 234 grams of potassium dichromate k2cr2o7 into a volumetric flask you dilute the potassium dichromate k2cr2o7 with h2o to a volume of 250
considering the molecule hooh what happens to the overlap in the sigma bond between the 2 o atoms as one hydroxyl group is rotated in a clockwise
the molecule atracurium is a very complex drug neuromuscular blocking agent and is associated to the natural product tubocurarine this drug exhibits
a sample of 1800 grams of octane c8h18 was burned in a bomb calorimeter whose total heat capacity 1166 kjdegc the temperature of the calorimeter
ag has a density 105 g cm3a graduated cylinder has 280 ml of h2o determine the new water level after 356 grams of ag metal is submerged in the
add the angular wave function for a 2s electron of carbon to that of a 2py electron of the same carbon atom subtract one from the other in what
considering the given reaction nog o3g-no2g o2g and determine the rate constant for the reaction at 75 degreesnbspif the frequency factor a 87
the ionic substance t3u2 ionizes and produces ions as t2and u3-ions determine the value of the solubility-product constant if solubility of t3u2
sulfuric acid h2so4 combines with sodium hydroxidenaoh according to the given equation as h2so4 naoh na2so4 h2o balance the equation for this
nbspo2 make up of 467 percent by mass of earths crust if a sample of earths crust has a mass of 325 grams then determine how many grams of oxygen are
determine the molarity of a saturated aqueous solution of nai formed as 25degree celsius assuming that the added nai does not add significantly to
when phosphorus of 31 grams that mixes with o2 71 grams of phosphorus oxide is the product determine the mass of phosphorus p is required to make 39
consider the equilibrium 2i g-i2g what will be the effect on the position of equilibrium of a decreasing the temperature at constant volume b
considering the given equation cs co2g-2cog this is the hetrogenous equilibruim processthe total pressure of the system is found to be 450 atm at 700