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4 FeS(s) + 7 O2(g) ==> 2 Fe2O3(s) + 4 SO2(g)What is the maximum number of liters of Fe2O3(s) that can be made from 11.53 L of O2(g) and 16.07 L of FeS(s) at STP?
A gaseous mixture of rm O_2 and rm N_2 contains 36.8 % nitrogen by mass. What is the partial pressure of oxygen in the mixture if the total pressure is 485 mmHg.
Three sparingly soluble salts, MA, MA2, and MA3, all have Ksp = 1.5 x 10-7. Determine which of these three has the highest molar solubility in water? a) MA, b) MA2, c) MA3 ,d) They are all equally insoluble.
What weight of sulfuric acid will be needed to react completely 35.5g of ammonia in the production of ammonium sulfate.
The distance between layers in a crystal is 321 pm. X rays are diffracted from these layers at an angle of 45.6°. Assuming that n = 4, calculate the wavelength of the X rays in nm.
how many grams of KOH are present in 32.5mL of a 6.42 M KOH solution
Important information about Thermochemistry, Glauber's salt, sodium sulfate decahydrate (Na2SO4 * 10H2O) undergoes a phase transition (that is melting or freezing) at a convenient temp of 32 degrees C
estimate the mean ionic activity coefficient for NaCl in a solution that is 0.020 mol/kg NaCl(aq) and 0.035 mol/kg Ca(NO3)2 (aq)
Application of Avogadro's law - To evaluate the volume of a gas using Avogadro's Law.
Calculate how many moles of gas was in the bicycle tire when the total volume of gas collected is 5.60L{rm L} at a pressure of 765torr{rm torr} and a temperature of 25 °C^circ {rm C}.
how many grams of carbon are required to react with 1.5x10^25 atoms of hydrogen to form CH4
how much heat must be added to 36.2g sample of iron to increase its temperature by 250.0 degree C.
Determine the mass of silver chloride is produced from 75.0 grams silver nitrate
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