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Compute the enthalpy change for the thermite reaction: 2Al(s)+Fe2O3(s)→2Fe(s)+Al2O3(s), ΔH°rxn=-850 kJ Explain when 8.00mol of Al undergoes the reaction with a stoichiometrically equivalent amount of Fe2O3.
The first equivalence point was at 7.59mL and the second equivalence point was at 14.91 mL. My calculated pKa1 is 2.01 and pKa2 is 5.71. What is the molarity of the maleic acid
Compute the number of liters of Oxygen gas required to produce15.0 liters of dinitrogen trioxide. Assume all gases are at the same conditions of temperature and pressure.
Butane has a heat of vaporization of 22.44 kj/mol and a normal boiling point of -0.4 C. A 250 ml sealed flask contains 0.75 g of butane at - 22C.
What volume of bromine trifluoride is required to produce 107 liters of fluorine gas according to the following reaction? (All gases are at the same temperature and pressure.) bromine trifluoride (g) -------bromine (g) + fluorine (g)
the freezing point of the resulting solution is 3.77*C. The freezing point of pure benzine is 5.48*C. Calculate the molar mass of the compound.
what effect (shift to the right or left) does an increase in the temperature have on each of the following systems at equilibrium
A buffer solution contains 0.219 M CH3NH3Cl and 0.428 M CH3NH2 (methylamine). Determine the pH change when 0.097 mol HI is added to 1.00 L of the buffer.
A graduated cylinder is filled to the 40.00-mL mark with a mineral oil. The masses of the cylinder before and after the addition of the mineral oil are 124.966g and 159.446g, respectively. In a separate experiment, a metal ball bearing of mass 18...
A 100.00 ml of volume of 0.500 M HCl was mixed with 100.00 ml of 0.500 M KOH in a constant pressure calorimeter. The initial temperature of individual acid and base was 23 degree celsius.
an aqueous solution containing 34.1 g of an unknown molecular nonelectrolyte compound in 141.3 g of water was found to
Are there hints in the data provided which would aide in choosing which integrated rate law to use? Also, if they were to give you the rate law for the overall equation, would you use the overall order's integrated rate law or the specific reactan..
Calculate the pH for each of the following cases in the titration of 50.0 mL of 0.100 M HClO(aq) with 0.100 M KOH(aq). (a) before addition of any KOH
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