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"Gasohol" is a mixture of gasoline and ethyl alcohol used as automobile fuel. The alcohol produces energy in a combustion reaction with O2.
C2H5OH(l) + 3O2(g) → 2CO2(g) + 3H2O(l)
If 0.115 g of alcohol evolves 3.42 kJ when burned at constant pressure, what is the molar enthalpy of combustion for ethyl alcohol?
If you use 25.0 mL of the 0.24M sodium hydroxide solution to titrate a 0.40 M solution, how many mL of HCl will be used
You start with a 2.354 g sample of a mixture containing SiO, NaCl, and NH, Cl. If after subliming away the NH, Cl, you have 1.975 grams of sample remaining, what was the mass percent of NH4C1 in the original sample
in the formula for sodium phosphate na3po4 how many moles of sodium are represented? how many moles of phosphorus? how
What is the empirical formula of a hydrocarbon if complete combustion or 6.000 mg of the hydrocarbon produced
if the annual production of acetyl salicylic acid in the u.s.a. were converted to 5-grain aspirin tablets approximately
When adjusted for any changes in delta H and delta S with temperature, the standard free energy change delta G note at 2400 K is equal to 1.22*10^5 J/mol . Calculate the equilibrium constant at 2400 K
A compound containing nitrogen and oxygen is decomposed in the laboratory and produces 1.78 g of nitrogen and 4.05 g of oxygen. Calculate the empirical formula of the compound.
Suppose that you have a reaction vessel containing an equilibrium mixture of CO(g), O2(g), and CO2(g). Under the following conditions, will the amount of CO increase, decrease, or remain the same?
Methane and oxygen react to form carbon dioxide and water. What mass of water is formed if 3.2 g of methane reacts with 12.8 g of oxygen to produce 8.8 g of carbon dioxide
Describe the similarities and differences between gas-sensing potentiometric electrode and pH membrane potentiometric electrode
Calculate the maximum non-expansion work that can be done on the surroundings from the combustion per kilogram of H2(g) at constant pressure and 298.15K.
an ordinary 3.0 v flashlight bulb draws roughly 0.25 a of current and converts about 1.0 of the electrical power into
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