using a compound contains 3006 percent oxygen and
Using a compound contains 30.06 percent oxygen and 69.94 percent iron . Determine its molecular formula if the molar mass of the compound = 199.55 grams per mole?
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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
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
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
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
using a compound contains 3006 percent oxygen and 6994 percent iron determine its molecular formula if the molar mass of the compound 19955 grams
considering the given equation 2 al 6 hcl rarr 2 alcl3 3 h2 determine how many grams of alcl3 are formed if 300 grams of hydrogen are produced it
what mass of sucrose c12h22o11 must be mixed with 543 grams of h2o to make a solution with an osmotic pressure 800 atm at the temperature of 12
europium europium is a chemical element with the symbol eu and atomic number 63 crystallizes in a body-centered cubic lattice compute the unitcell
nbspka for cyanic acid hcno 35 x 10-4 at 25degc write the equilibrium that corresponds to ka the standard heat of combustion of butane gas - 2880 x
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