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The standard heat of combustion of liquid ethyl alcohol is -227 kcal/mol and that of acetic acid is -209 kcal/mol.
The compound carbon suboxide, C3O2, is a gas at room temperature. Use the data supplied the calculate the heat of formation of carbon suboxide.
Discuss how to determine the enthalpy of a chemical reaction primarily using Hess's law.
The elementary steps for the catalyzed decomposition for dinitrogen monoxide are shown below. Identify the catalyst.
What is the net ionic equation for the reaction of NaCl with a strong base?
Select the correct balanced net ionic equation for each of the following reactions, occuring in aqueous solution.
Correct balanced net ionic equation for each of the following reactions, occuring in aqueous solution.
Draw a reaction coordinate diagram showing the energy of the reactants, the products, and the transition state. Clearly label the axis.
What volume of 0.1379 M HCl is required to neutralize 10.0 mL of 0.2789 M NaOH solution?
An ion has 12 protons, 13 neutrons, and 10 electrons. What is its charge? Consult the periodic table and write the symbol of the ion.
The changes in speed and motion of molecules when a solid becomes a liquid and when a liquid becomes a gas.
The direction in which the reaction spontaneously proceeds changes as the temperature is increased above a specific temperature. Explain.
If the equilibrium pressure of nitrogen dioxide is 0.298 atm, what is the pressure of dinitrogen tetraoxide?
If 0.350 atm of Hl(g) is sealed in a flask, what would be the total pressure of the system when equilibrium is established?
A reversible reaction described by the chemical equation shown below (equation one) has an equilibrium constant of 10.
The value of the equilibrium constant for a particular reaction is 2.34 x 10^3 at 298k. Calculate the change in G for this reaction.
For the reaction below, the partial pressures of gases at equilibrium are as follows: H2=7.1x10^-5 atm, Cl2=2.5x10^-6 atm
The Stopcock between A and B is opened,and the system is allowed to come to equilibrium. The pressure in A and B is now 219 mmHg.
Hydrogen gas is produced by the reaction of steam with "water gas," an equimolar mixture of H2 and CO obtained by the reaction of steam with coal.
The equilibrium concentrations in this system are [A]= 0.110 M, [B]= 1.78 M and [C]= 0.890 M.
HCl is at 2.30 atm, O2 is at 1.00 atm and they both react at 750 K. Equilibrium pressure of Cl2 is .93 atm.
For the reaction 2NaHCO3 = Na2CO3 + CO2 + H2O a 5.00 gram sample of NaHCO3 is placed in an evacuated flask and the temperature is increased.
Further, a solid PH3BCl3 is added to a closed .500 L vessel at 60 degrees celcius; the vessel is then charged with .0216 mol of BCl3.
Suppose that 3.010 g of PCl5 is placed in an evacuated 580. mL bulb, which is then heated to 600. K.
The Equilibrium Constant. Consider the reaction 2 NO(g) + 2 H2(g) ----> N2(g) + 2 H2O(g). A 3.00-L container is filled with a mixture of 0.300 mol NO.