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Given the following reaction use Stoichiometry to answer the following questions:
4Fe (s) + 3 O2 (g) → 2 Fe2O3 (s) ?H° = -1.65 x 103 kJ
How many mol of O2 are required to form 3.20 mol Fe2O3?
How much heat is exchanged when 14.3 kg of iron (Fe) rusts?
How much (g) of rust, Fe2O3, is formed when 200. kJ of heat is released?
Calculate the standard change in enthalpy, ΔH°rxn, for the decomposition of calcium carbonate to calcium oxide: CaCO3 (s) → CaO (s) + CO2 (g)
Given that:
ΔH°f CaCO3 (s) = -1206.9 kJ/mol
ΔH° CaO )s) = -635.1 kJ/mol
ΔH° CO2 (g) = -393.5 kJ/mol.
The concentration of carbon in a carbon-metal alloy is found to be 4.73x10^1 kg/m3. It is also known that the concentration of carbon in wt% in the alloy is 1.318x10^0 .
If Amberlyst 21 has a concentration of active site of 1.25 eq/L and we want to use 100 mL of a solution, how much Amberlyst 21 should we use
A piece of a newly synthesized material of mass 25.0 g at 80.0C is placed in a calorimeter containing 100.0 g of water at 20.0C. If the final temperature of the system is 24.0C, what is the specific heat capacity of this material?
Attractive intermolecular forces exist between the molecules in the gas. The effect of these attractive intermolecular forces in a real gas is to
Write the structures for the major monobromination products that would be formed from each of the following substrates used. Explain your predictions.
why a bromine radical is more selective than a chlorine radical during abstraction of a hydrogen on a hydrocarbon?
what effect does conjugation (alternating single and double or alternating single and triple bonds) have on the location
A large flask with a volume of 936 mL is evacuated and found to have a mass of 134.66g. It is then filled to a pressure of 0.967atm at 31 degrees C with a gas of unknown molar mass and then reweighed to give a new mass of 153.81g. What is the mola..
Calculate the kinetic energy in joules of a 1400kg automobile moving at 12m/s. Convert this energy to calories. What happens to this energy when the automobile brakes to a stop
A sample of chloroform is found to contain 10.5 g of carbon, 93.1 g of chlorine, and 0.88 g of hydrogen. If a second sample of chloroform is found to contain 20.8 g of carbon, what is the total mass of chloroform in the second sample?
Draw the best Lewis structure of CO32-. In this compound, the C atom is attached to three O atoms, and there are no O-O bonds
how does temperature affect the equilibrium constant of the reaction between ethanoic acid and ethanol (condensation reaction at room temperature and pressure.
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