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Find the standard enthalpy of formation of ethylene, C2H4(g), given the following data: heat of combustion of C2H4(g) = -1411 kJ/mol; ?H°f[CO2(g)] = -393.5 kJ/mol; ?H°f[H2O(l)] = -285.8 kJ/m
Characterize each of the following as a strong, weak, or non-electrolyte: a. H2O, b.HCl, c.HNO3, d.KCl, e.KNO3, f.KOH, g.CH3CO2H, h.CUSO4, i.NH3, j.Ca(NO3)2,k. Al(NO3)3
Determine the density of N2O(g) at a pressure and temperature of 0.7982 atm and 304.5 K, respectively.
Write a chemical equation for the reaction whose enthalpy change is the standard enthalpy of formation, ?H of, of table sugar, sucrose, C12H22O11 (s).
calculate the final temperature of a mixture of 150.0 g of ice initially at -16.5C and 443.5 g of water initially at 84.0C
Balanced chemical equation for the combustion of liquid ethanol c2h5oh, in oxygen, yielding gaseous carbon dioxide and water vapor.
A titration is performed to determine the amount of sulfuric acid, H2SO4, in a 12.00 mL sample taken from car battery. About 50 mL of water is added to the sample, and then it is titrated with 48.62
The label claims this solution is 3.0 % (w/w); that is there are 3.0 grams of H2O2 in every 100 grams of solution. What is the molar concentration of this solution. Assume a density of 1.00 g mL
The compound below is treated with chlorine in the presence of light. Draw the structure for the (organic) species produced by reaction of the compound with a chlorine atom. Assume reaction occurs a
balanced chemical equation for the aqueous neutralization of hydrochloric acid with sodium hydroxide forming sodium chloride and water
Which of the following compounds would produce a single product when treated with Cl2 in the presence of ultraviolet radiation and why A) butane B) 2-methylpropane C) 2,2,-dimethylpropane D) All wou
Using IUPAC substitutive nomenclature rules, write the name of the major organic product when 1-propanol reacts with concentrated sulfuric acid under heated conditions.
balanced chemical equation for the reaction of aluminum with aqueous copper(II) sulfate producing copper metal and aluminum sulfate
Rate constants for the decomposition of acetaldehyde were measured at five different temperatures. A plot of ln k versus 1/t gave a slope of -2.09*10^4 K. What is the activation Energy for this reac
Will water or cyclohexene be present in greater amount in the distillate from co-distillation. Explain.
Draw the compound and its constitutional isomer indicate which structure has enantiomers, diastereomers or meso compounds. is the constitutional isomer chiral or achiral
Calcultae the observed rotation of a mixture of + and - tartaric acid containing 60% of the S isomer
The recovery of CaCo3 was attempted by adding #m H2SO4 instead of 3M HCL to the SiO2/ CaCO3 residue.
The activation energy for a particular reaction is Ea = 14.20 kJ. What percentage of the molecules are at or above the activation energy at 500.0 K
When carbon is burned in air, it reacts with oxygen to form carbon dioxide. When 14.4 g of carbon were burned in the presence of 50.6 g of oxygen, 12.2 g of oxygen remained unreacted. What mass of c
Include on the graph the boiling points of pure benzene and pure methanol and the boiling point of the azeotrope. Describe the behavior for a mixture that is initially rich in Benene (90%) and then
Why is the boiling point of a cyclohexene and water mixture less than 83 degrees, the boiling point of cyclohexene
A sample of sodium reacts completely with 0.497 kg of chlorine, forming 819 g of sodium chloride. What mass of sodium reacted
A nurse administered 3.50 mL of a radioisotope solution that has an activity of 135 Ci/mL. What total dose of the radioisotope did the patient receive